First I drew 4" leaves (give or take) on green construction paper to cut out. The kids glued on colored craft pom poms to make a caterpillar. This, of course, was Ben's favorite part! They also glued on googly eyes.
When your caterpillar is a little bit dry, glue the whole paper leaf to a wooden clip. I used hot glue to attach a magnet to the bottom of the clip. To get one long enough, I actually used a magnetic business card that I cut into skinny strips.
Now you have a cute homemade magnet for your fridge...and you can use it to clip up new artwork too!