Reddit reviews Golden State Art Acid Free, Pack of 25 11x14 White Picture Mats Mattes with White Core Bevel Cut for 8x10 Photo + Backing + Bags

I've sold at a farmers market before. Based on my experience, there are a few things i would suggest:

1. The most people are willing to spend is around $20. Even at that price point, people get a bit skittish.
   
2. The cheapest/nicest way to display prints that i've found is individually matted and bagged:
   http://www.amazon.com/gp/product/B0077EAOSU/ref=oh_details_o05_s01_i00?ie=UTF8&psc=1
   
3. Display the prints individually, rather than in a big stack. Most people that walked by weren't willing to flip through the stack to find something they liked.
   
   All told, it was worth my time, but only just. I sold most of my prints for between $10 and $20. Over the course of 8 weeks i sold roughly 20 prints. I had around 15-20 different prints that i rotated through during the 8 weeks. The only things that i had go wrong were weather related. Being flat and light, prints can tend to blow away.
   
   Hope that helps. If you have any other questions, let me know.
   

To store and protect your work when displaying at your booth. The backing is basically cardboard. It should be strong, the same size as your work, and PH neutral. The bag should be a snug fit. It should should have a way to be sealed, either a flap with adhesive or you can tape. Here's a good selling bulk kit on Amazon

It's to protect your work during storage, transport, display, etc. It also adds a little professionalism compared to just selling a loose print. Discourage people from opening them and handling whats inside, the prints could wrinkle and matte will brown. You don't want to display them with wrinkles, if they're a little lose, add a fold and tape the back side.