First we cut the egg carton in half lengthwise so we had 2 strips of 6 egg cups. I used a paperclip to poke holes in each side of the egg carton to feed the pipe cleaner through.
Once it was fed through I thread the button with the pipe cleaner to make button feet on both sides.
I made button antennas by feeding the pipe cleaner through 2 holes on the top of the first egg cup and attaching the button in the same way.
I added a smily face and buttons on the top of each egg cup and have a fun button caterpillar!