Shrinky dinks! You can get them in a variety of colors, and wholesale at about 50c a page. I bring with me a pile of white circles for the characters to sign, and when I get home, I cut out 4 mickey heads per page (in black), shrink everything, and glue them together. I then take a glass ball Christmas ornament, decorate it, and attach the shrunken dink to the front and sell each for 5 bucks for a local children's charity around Christmas. It's cute, costs me about a buck a piece, is a blast to do, and is for a good cause. Clearly you don't have to do it this way, but there is any number of things you can do with shrunken dinks, jewelry, sun-catchers, put together a scrap booking collage, do a mobile... the possibilities are endless.