There is something magical as the ball spins.
This is my nine-year-old daughter's project--it was her idea, and she did all the work except that I suggested that the water bottle neck adapter as a more secure way of attaching the LED and I cut the neck of a water bottle for her.
Ingredients and tools:
- keychain LED, e.g., this one
- small inflatable ball
- some string
- a stick
- tape
- scissors
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Signing UpStep 1: Tie string
RedneckEngineer says:
Aug 28, 2011. 3:27 PMReply























Not Nice


















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