Rube Goldberg "Bar of Soap" Challenge


Participants will build a machine that drops a bar of soap into someone's hand.


  1. Entry must drop a bar of soap into someone's hand using 10-20 steps.

  2. Entry must be made from everyday objects.  

  3. Video submissions should show every step in the homemade chain-reaction machine in a single, unedited pass.



Submit the entry as a PDF via this submission link by January 31, 2021. The winner of the monthly challenge will be featured as the Outstanding Member of the Month on OKTSA social media. was created by Oklahoma TSA!

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