My kids enjoy these Design-Your-Own Sticker Scenes from Oriental Trading. Included are enough sheets to make 12 scenes. They are great, inexpensive (Makes 12 for $5), and an easy activity for a wide variety of ages. We use these in the car on trips... they are relatively not messy. I love to break out a set when my kids have friends over, or for an activity for a sick kid to do when they are bored! They come in holiday themes too, which make perfect classroom treats!
Please note: the stickers tend to be a little tricky to get off their sheet, but with the help of an older child or parent, younger kids LOVE this!
Thru April 30, 2009, you can get $10 off any order over $20. That is the best Oriental Trading offer I've ever seen. Use key code ALU912.
Go to OrientalTrading.com and search for "sticker scenes" to see their wide variety!