Image by Moonwaves via FlickrATC's are "Artist Trading Cards" and they are perfect for students to make if they finish their art project before the rest of the class. There are no rules for ATC's except for their size. A true ATC is 2 1/2" x 3 1/2", just like baseball cards.
These ATC's were made with colored glue. Tempera paint was added to the glue to give it color.
After they've dried. The glossy color fades and the glue tends to run together, but their touchable appeal is fun. (These will be flattened under a big book after one more day of drying!)