Siri and I made a caterpillar from our button jar yesterday and I thought I'd share it. It's a fairly easy project although it tends to break in little hands (we had a "re-glue" situation a couple of times). Basically, you just need to make 5 sections of 7 buttons each. THe 5 buttons need to be 1 big, 2 semi-big, 2 medium, and 2 small. We used hot glue to put the buttons together. We also alternated colors (3 pink sections and 2 blue sections). We added a pearl button for the nose and 2 pink pins for antenna. All and all an easy project! Siri loved putting it together. Warning: you WILL have buttons all over the floor once you are done!