I have a similar multi-monitor setup and no desk space. I bought this by searching "flexible tripod clamp" on Amazon. I can report back next week once I get a chance to try it out.

http://www.amazon.com/Smatree%C2%AE-Ajustable-Gooseneck-Extension-Cameras/dp/B00MWNYGUS/

i wouldn't recommend having it anywhere that might vibrate, also keep in the mind lighthouse does vibrate a bit itself so make sure it is secure so it doesn't fall off, you can actually use something like this https://www.amazon.com/gp/product/B00MWNYGUS

I'm getting this http://www.amazon.com/gp/product/B00MWNYGUS
Someone posted about them and said he tried them with a camera that is twice as heavy as the lighthouse and they are supporting it.

These work really well and give you a bit more flexibility in positioning the lighthouses. https://www.amazon.com/gp/product/B00MWNYGUS/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1

I use this to mount on my monitor. Mine is a 55" so I needed a little longer to reach from the monitor mount to about the top rim. Though you could always use extra height of a gooseneck being so low with those monitors anyhow.
https://www.amazon.com/gp/product/B00MWNYGUS/ref=oh_aui_detailpage_o09_s00?ie=UTF8&psc=1

I bought two of these adjustable gopro mounts. One grabs the top edge of a dresser, the other grabs the upper shelf of my computer desk. Lighthouse easily screws into the top. Very solid/stiff build. This is a good option if you don't want to drill and have places to clamp them.

https://www.amazon.com/gp/aw/d/B00MWNYGUS

Mentioned it before, but this is what I'm going with: http://www.amazon.com/gp/product/B00MWNYGUS

If it can hold a 680g camera still enough for a long exposure it should hold a 320g Lighthouse no problem.

These aren't suction cup mounts, but they're what I use. Smatree Adjustable Jaws Flex Clamp

You'll notice the Amazon page says there is a newer version of the item available, but it's a suction cup mount - I wouldn't trust suction cups myself, however if you require suction cups (because the clamps won't work for you), the newer version might be what you're looking for.

I got a couple of these for my sensors to clamp onto the shelves. Very sturdy and infinitely adjustable. Just unscrew the go-pro mount and there is a standard 1/4" tripod/camera mount.

https://www.amazon.com/Smatree-Ajustable-Gooseneck-Extension-Session/dp/B00MWNYGUS/ref=sr_1_3?s=electronics&ie=UTF8&qid=1505394334&sr=1-3&keywords=flexible+camera+clamp

Duct tape will slip over time and temperature and will also leave a sticky mess.

https://www.amazon.com/Smatree-Ajustable-Gooseneck-Extension-Session/dp/B00MWNYGUS/ref=pd_sbs_421_1?_encoding=UTF8&pd_rd_i=B00MWNYGUS&pd_rd_r=GR47GAVWSVA19SYKJRSH&pd_rd_w=YMBhq&pd_rd_wg=kDVRo&psc=1&refRID=GR47GAVWSVA19SYKJRSH

1. He needs to be entertaining to keep viewers. If he's not at the 99.9999th percentile of skill, it's highly unlikely he'll build a following without being highly entertaining. So manage your expectations and help him manage his.
   
   
2. For someone to be entertaining a big part of it is to have a varied life. Conversation about a wide variety of subjects, being happy, healthy, clean, accomplished, etc... As a couple you should be helping each other achieve those things regardless, so maybe take a step back and look at that big picture.
   
   
3. AFK his stream, invite friends to watch it, etc...
   
   
4. Make him his chicken tendies, mountain dew, and open his doritos. Just kidding...
   
   
5. As for equipment and setup... This all depends. The next things I would usually advise would be the best quality camera you can get in your budget, like an actual HD camcorder and figure out how to hook that up. Maybe an IRL streaming backpack setup? Sound treatment for the room can be good, but majority of products you buy for this are snake oil, so do your research. I'll just list off some things that I recommend people as ideas:
   
   https://www.amazon.com/dp/B00MWNYGUS/ - Adjustable clamp-jaw mount for cameras like the Logitech C920/922 (the most recommended cameras). Get a better or more unique angle.
   
   https://www.amazon.com/dp/B00ACFAULC/ - Pop filters help a lot with audio quality.
   
   https://www.amazon.com/dp/B017WNJS3M/ - Green screen it up and you can do all sorts of wacky or cool stuff, or it just cleans up the presentation of the stream in general.
   
   https://www.amazon.com/Elgato-Stream-Deck-Mini-Customizable/dp/B07DYRS1WH - The streamdeck mini just came out, pretty useful for doing goofy on-demand stuff with programmable buttons. Some people swear by these.
   
   For higher end stuff for audio, put this stuff in a wish list if he does start to take off:
   
   https://www.amazon.com/Shure-SM7B-Dynamic-Microphone-Cardioid/dp/B0002E4Z8M - Probably my most recommended mic for people wanting to get into the more serious stuff.
   
   https://www.amazon.com/dbx-286s-Microphone-Preamp-Processor/dp/B004LWH79A - Probably the best entry level audiophile grade mic preamp. This is endgame for streamers personally, it's way beyond what most people have and it will give him an edge.
   
   https://www.amazon.com/Cloud-Microphones-CL-1-Cloudlifter-1-channel/dp/B004MQSV04 - Cloudlifter CL-1. This is a must if you ahve a Shure SM7B, excellent high end filter that will absolutely remove all noise.
   
   https://www.amazon.com/Furman-M-8X2-Outlet-Conditioner-Protector/dp/B003BQ91Y6/ - Further eliminates noise from dirty power. Everyone who wants a decent XLR high-end setup wants something like this.
   
   https://www.amazon.com/Allen-Heath-ZEDi-10FX-Compact-Interface/dp/B01ATAK5MS - This is an excellent mixer+audio interface combo, if you are going XLR you'll want a mixer. It's 4x4 USB, which for the price is a great value, and it's preamps and lines are notoriously silent. I bought the last version of this which was a 4x2 interface on a great sale, and couldn't be more pleased.
   
   There's a lot more you can get of course. A simple small table rack to rack mount these things... But it all depends, the sky is the limit with this stuff. Just giving you ideas of how you can go nuts with it.
   
   But at the core of it, if he's not organically growing by being consistent and working hard at it and trying to improve... Maybe he's just not entertaining enough? It is what it is. Don't think that buying this stuff really makes any difference, it only does if you are already able to gain viewers in the first place.

I have a popcorn ceiling, so I have a set of these with them clamped to the pole via this.

Chances are you'll want to angle them down for optimal coverage. You can mount them directly into concrete/brick. Just drill with a masonry bit and use anchors.

However, as another user pointed out if you are putting up shelves and they are wood you could just attach the mounting bracket right to the shelving or purchase a clamp mount like this, this or this. The bolt size is a 1/4 20 which is the standard for consumer cameras tripod mounts so you can find tons of mounting options out there.

If you search a bit you can find tons of mounting alternative threads like this.

I use the gooseneck clamps and they work perfectly. I clamped one to a bookcase and the other to a window.

http://i.imgur.com/9TfKcv3.jpg

I got these https://www.amazon.com/gp/product/B00MWNYGUS/ They're very sturdy.

They will screw right in to these clamps:

https://www.amazon.com/gp/aw/d/B00MWNYGUS/ref=mp_s_a_1_7?ie=UTF8&qid=1480564543&sr=8-7&pi=SL75_QL70&keywords=camera+clamps

I have it on a camera mount that I can put pretty much anywhere. https://www.amazon.com/gp/aw/d/B00MWNYGUS/ref=sxts1?ie=UTF8&qid=1481815407&sr=1&pi=AC_SX236_SY340_QL65

I use these but portable only in the sense that I go to my parents/friends/my home with it all. Not demoing everywhere.

I just got these and highly recommend them: https://www.amazon.com/gp/product/B00MWNYGUS/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1

I was worried about the gooseneck not being strong enough for the light houses, but it's very sturdy -- almost difficult to move. The clamps are strong and large and the 360º pivot is just icing.

I use these since they take up no floor space. https://www.amazon.com/gp/product/B00MWNYGUS/ref=oh_aui_detailpage_o09_s00?ie=UTF8&psc=1

Raspberry Pi 2 B+ (Older versions are barely powerful enough for streaming 1080p): http://www.amazon.com/Raspberry-Pi-Model-Project-Board/dp/B00T2U7R7I/ref=sr_1_3?ie=UTF8&qid=1452140774&sr=8-3&keywords=raspberry+pi+2+b%2B

RaspiCam: http://www.amazon.com/Raspberry-5MP-Camera-Board-Module/dp/B00E1GGE40/ref=sr_1_1?ie=UTF8&qid=1452140727&sr=8-1&keywords=raspicam

Extra cable for the camera: https://www.adafruit.com/products/2144

This camera holder: https://www.adafruit.com/products/1434

This flexible camera mount: http://www.amazon.com/gp/product/B00MWNYGUS?psc=1&redirect=true&ref_=oh_aui_search_detailpage


Follow the steps here: https://www.reddit.com/r/raspberry_pi/comments/2ahzp2/raspberry_pi_encoder_live_streaming_to_youtube/

The most important step is to download ffmpeg crosscompiled for arm from here: https://drive.google.com/file/d/0B0OC20ApqKZ_YVB3NHF6VU9XTUE/edit?usp=sharing

Then you can use my script:
./video.sh "Your custom message can go here"

!/bin/bash

SERVER="rtmp://a.rtmp.youtube.com/live2"
KEY="YOUR YOUTUBE KEY GOES HERE"

while true; do pkill -9 raspivid; pkill -9 ffmpeg; raspivid -o - -t 0 -ISO 100 -ev 0 -w 1920 -h 1080 -fps 25 -b 5500000 -g 50 -awb off -awbg 1.7,1.8 -st -ae 64,0xff,0x808000 -a "$1" -a 1025 | /home/pi/arm/bin/ffmpeg -re -ar 44100 -ac 2 -acodec pcm_s16le -f s16le -ac 2 -i /dev/zero -f h264 -i - -vcodec copy -acodec aac -ab 160k -g 50 -strict experimental -f flv $SERVER/$KEY; done

I have a similar problem. Dual monitors but they're vertically stacked.

What I've done with my DK2 camera is clamp it with this mount to a curtain rod and it's been working wonderfully. It's even delivered an alright standing experience. Especially for DK2. I can't wait to get my CV1 camera up there. It's at the kind of height that'd be recommended for lighthouse base stations.

This is late but I stumbled into this thread from a search for something else. I've just finished my semester doing the same thing for a Calculus 2 class in a college setting. I usually use a chalkboard, but I opted for a webcam attached to a clip-on stand. This ran through my laptop (a Mac, which is relevant) and then into the overhead projector. Instead of writing on a board I instead wrote on paper. This actually encouraged me to pre-print worksheets to work through and also make available for students, which has been very helpful and I've received lots of positive comments from students about the setup. Lectures are recorded with Quicktime Player using my laptop's built-in mic. After a new concept or a natural break in the discussion I stop recording, save the video, and start another one, giving me videos of 5-15 minutes each. This semester I ended up with 150 videos, all hosted on YouTube unlisted with a playlist URL that I shared with students once at the beginning of the semester (voting and comments disabled).

When I wanted to use a virtual manipulative (I like GeoGebra for demos, and I code on the fly in front of the class with Sage) I use [record screen] rather than [record movie] in Quicktime. If I run DwayneCam (free app for OSX) I can show the webcam stream in a window on the desktop while I also show my web browser, and the whole screen gets recorded.

It really is a great setup and cost me under $100 total. Plus all you ever see of me is my hand.

Webcam

Stand

http://www.amazon.com/Smatree%C2%AE-Ajustable-Gooseneck-Extension-Cameras/dp/B00MWNYGUS/ref=sr_1_5?ie=UTF8&qid=1464584994&sr=8-5&keywords=camera+mount

I use these. We have a dropped ceiling, so I just clamp this to the bar attached to the wall.

No, they are not included, you can get some here:

http://www.amazon.com/dp/B00E6GRI7M/

http://www.amazon.com/dp/B00G4L2976/

http://www.amazon.com/dp/B00PICAE4C/

http://www.amazon.com/dp/B000ABB4HC/

http://www.amazon.com/dp/B00GV0LW6E/

http://www.amazon.com/dp/B00MWNYGUS/

Only concern I would have is if you extend the pole you will reduce camera stability. Not sure if your area is susceptible to floor vibration but that may cause the cameras to sway if they are extended too much. Otherwise something like this on Amazon may work https://www.amazon.com/Smatree-Ajustable-Gooseneck-Extension-Session/dp/B00MWNYGUS/ref=sr_1_3?ie=UTF8&qid=1510158120&sr=8-3&keywords=1%2F4+camera+mount+extension&dpID=41RTccFuUML&preST=_SY300_QL70_&dpSrc=srch

I have these plus two of these which are cheaper if you need two stands. That said, anytime these are bumped, your whole world will shake around (and I suspect bumpings will be commonplace if your dorm is a typical on), so if possible, you should probably use shower-rod-style stands like what /u/Decapper linked, or one of these to set on top of a bookshelf or something, or clamps something along the lines of this.

I do a VR night at a local pub and have used the mounts I'll link below also. They do a great job. Also if you don't want to use your stock lighthouse electric adapters (I can't use mine because I have them ran under wire covers) these work great also. Just will need an extension cord.

Smatree Ajustable Jaws Flex Clamp Mount 13.4" Gooseneck Extension for GoPro Hero 5/4/3+/3/2/1/Session / for Ricoh Theta S, M15 Cameras/ for Compact Cameras(1/4" thread) https://www.amazon.com/dp/B00MWNYGUS/ref=cm_sw_r_cp_api_B-pHybZNRWQJA

ALED LIGHT® 12 Volt 3 Amp LED Strip Light Power Adapter, AC to DC, 2.1mm X 5.5mm Plug, Regulated 12v 3a Power Supply Wall Plug for LED Strip Light https://www.amazon.com/dp/B013SSU92Y/ref=cm_sw_r_cp_apip_a1sWXNPht7UyF

https://www.amazon.com/Smatree-Ajustable-Gooseneck-Extension-Threaded/dp/B00MWNYGUS