Reddit reviews Classic Crafts NSI Rock Tumbler Classic, Multicolor

Toss it into a rock tumbler for a month or so and you could sell it on eBay for a few bucks. Might have to get one a little larger than this one though.

I was thinking more like a rock tumbler instead of a Yeti type thing. Lol.

Query: If I had several small stones like OP's, and wanted to do something fun with them, what kind of results would I get by passing them through one of those cheap, commercially available tumbler/polisher things like this one? I always wanted to give it a shot, but I always thought the results on the box seemed suspect. Do you have any experience with such devices?

Yeah, I'm looking for a tumbler.
I've found a few online, but they look kind of sketchy....
http://www.ukge.co.uk/UK/Stone-Tumblers.asp?gclid=CNquv8S53a4CFUcRfAodqk9Kag
and this one is purely for kids, don't know if it's going to be worth a try at all.
http://www.amazon.com/Classic-Crafts-Rock-Tumbler/dp/B00000ISUU

.... and good luck try not to electrocute your self too hard.

http://www.amazon.com/Classic-Crafts-635-Rock-Tumbler/dp/B00000ISUU/ref=sr_1_2?s=toys-and-games&ie=UTF8&qid=1406207238&sr=1-2

With the proper bits, polishing paste, a rotary tool stand and an industrial rotary tool that specific agate could take hours. With just a regular old dremel, water and some crappy bits /u/ces614 is right that agate could take you days.

Source I do a lot of rotary tool work on shells, and have practiced on some small soft stones. On the Mohs scale they would fall between 3 and 5, an agate is what roughly 7 on the scale. The hardest thing I've worked on with the dremel I have is a striped fox conch, if you mesured it against the Mohs scale it would be about a 6 maybe 6.5. I was making a shell horn, it took an hour and a half total to finish it. Imagine spending an hour and half on that agate, thats if you only do one side. You'd have to take a lot of breaks even with a stand or a flex shaft. I guess if your just doing the one stone you could do it but man that's ify.

Personally just drop the $80 on a nice Lortone tumbler, they are simple and last damn near forever. Use the rotary tool, or whatever you already have to shape your agate then throw it in the tumbler. If you want to do it super cheap, buy a toy tumbler they cost about $30. After 2 or 3 sets of rocks they start to leak, unless they have improved them any since I was a kid (I'm 30 now) which I doubt.

This basically you put everyday rocks you find in world into it and it tumbles them for like a week i think and when you take them out they are all shiny and smooth. then i don't know what you do with them, but you would have a bunch of really shiny and smooth rocks.