Your neighborhood toy store since 1964
Your neighborhood toy store since 1964
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Bouncing Planets
Thames & Kosmos

Bouncing Planets

Regular price $9.99 $0.00 Unit price per
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Make five colorful, rubbery balls resembling planets in minutes. Using a spherical mold and five colors of polymer granules, cast up to five rubbery planet models. Learn why the balls form and how the elasticity of the polymer material causes them to bounce.

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