Speaking of acrylilc frames, WalMart also has the little ones, maybe 2x3? I used those last year (and will again this year) for my price signs. Just wrote or typed up the product and price, slipped it in the frame and ta dah, a price sign! they also had ones that were the same size but had two frames attached (like a book?) and I got some of those too for my signs. I got lots of compliments on the idea last year from other vendors. I think they are about 40 cents each?
Before I did this, I made all these cute little pumpkins with a paperclip on top, the pumpkin was made with punches - round maybe, I can't remember, and then you glue them together. Well they were adorable BUT they kept falling over and signs kept falling out. So that wasn't such a great idea. I gave the pumpkins to anyone who commented on how cute they were cause I 'hated' them by my third sale. By that time I had found the acrylic frame idea anyway.