I may be weird but I refuse to buy them because they're just tooth pics with paper on them, yet I never have managed to make them to my liking till yesterday.
All we did was take sticker mailing labels and fold them in half over a tooth pick and decorate them with a Sharpie. (OK these probably aren't tooth picks.. they're...what the heck are these anyway?) What fun! You could print images or text on them if you don't want to use a marker. I love it when inspiration strikes! Next time I think I'll cut them into triangles just for fun!!