craftgrrl | Help finding supplies......FOUND

I work at a school (cook) and was out in the cafeteria today and saw the art teacher working with a couple of kids making ornaments. I thought they were so cute and made me want to make some. They were using clear ball ornaments and paint. They put some paint into the balls, put the cap back on and swirled it around. Simple, no? Problem is, I didn't think to ask the lady where she found the ornaments. Figured they'd be easy enough to find around town. Boy, was I wrong. I went to the Dollar Tree, Walmart and Kmart and had no luck finding clear glass balls. I mean, what gives?

So, does anyone know of a good place to buy some of these that is cheap and I'd be able to order online? I'm going to be heading to Big Lots tomorrow after work (maybe) to see if they have any but I'm not getting my hopes up. Any help is appreciated. If I'm helped, it'll be one more project I'll be able to do and post up for others to see. :]

Thanks for helping me out guys. I had completely forgotten about some of the other craft shops and was finally able to find some ornaments at Hobby Lobby. Not the price I was hoping for but not too bad either. Again, thanks guys.