Duncan The Drinking Bird
Duncan The Drinking Bird
Duncan The Drinking Bird
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Duncan The Drinking Bird

Regular price
$19.95
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$19.95
Regular price
$22.90
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  • This classic novelty drinking bird is a scientific wonder
  • Dip head in water and the liquid inside will flow upside down to make Duncan bob
  • This seemingly simple device uses the principles of thermodynamics to maintain a constant bobbing motion