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WHAT YOU NEED:
one toothpick broken into parts
hot glue and hot glue gun (low temp)
§ 6 rubber bands
§ utility scissors
§ straw
§ 2- We used Woodpile Fun sticks 3.15″x 0.16″ sticks
§ 2″ cardboard wheels with hole in center. You can cut out corrugated cardboard
§ 2 bolts
1. Cut straw 4x -1″ pieces or smaller ( I say 1″ pieces, since that will be straight forward for the kids to measure, but smaller may give you even more room in center to work with.)
2. Connect 2 rubber bands equaling the length of a 4.5″ popsicle stick. We used 32mm rubber bands for this project.
3. Cut toothpick into small pieces. Doesn’t have to be precise. This is what the rubber band will catch on to when you pull wheels back.
4. Put rubber bands around cardboard wheels to increase friction.
5. Twist stick (axel) into wheel hole. If the hole isn’t big enough, widen with a pencil.
6. Secure outside of wheel with hot glue.
7. String two straw pieces on each stick (axel).
8. Place wheel on other end, and secure with glue.
9. Spread straw pieces apart and hot glue small toothpick pieces in center.
10. Hot glue popsicle sticks on straws.
11. Hot glue bolts on the back of the car to weigh it down and decrease spin out. Add nuts as needed. It all depends on your size of bolt. With engineering it is all about testing and altering your design.
12. Attach rubber band to the front axel.
13. Connect rubber band loop to the back toothpick, twist to wind up, and release.
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