Every year my family has a contest to see who can make the best gift wrapping job. My little nephew LOVES trucks and construction equipment. So I figured I would make some trucks drive around on the lid of a box for him. I went through a few ideas and bounced some ideas off of my friend Ben. We came up with the idea of dragging the trucks around with magnets. Now anyone can make stuff go in a circle. I wanted to up the ante a bit and have the trucks drive a serpentine path. I came up with the idea of using scotch tape as a conveyor belt.
Foam core board- you can buy this from $1.25 to $7.00 per sheet so shop around.
Poster board- wal mart 97 cents per sheet.
foam sheets (for trees and fish) $1 for a bag of assorted colours
3 toy trucks $1
patience (not pictured because I used it all up)
some sort of motor / gear / wheel system