Rubber Band Powered Tugboat

Mark Nutcher constructs a rubber band powered tugboat.

That's Clever! : Episode HCLVR-315 -- More Projects »
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Steps 15-17
15. The notches are cut halfway through one side and halfway through the other side to fit together by sliding the notches together.

16. Sand the paddle pieces.

17. Slide the paddle pieces together and set with waterproof glue.