Puzzles & Games

Puzzles & Games
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  • Poly Density Kit

    Poly Density Kit

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    Spontaneous order from disorder! Isn't this a violation of The Second Law of Thermodynamics??
    $19.95
  • Catch and Release Cartesian Diver

    Catch and Release Cartesian Diver

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    Guaranteed to get anyone hooked on science!
    $4.50–$21.95
  • Fluorescent Magic Sand

    Fluorescent Magic Sand

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    Sand that repels water and never gets wet!
    $6.95
  • Periodic Table Playing Cards

    Periodic Table Playing Cards

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    Great for discovering facts about the elements while playing cards!
    $15.95
  • Hoberman Switch Pitch Ball

    Hoberman Switch Pitch Ball

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    Toss the ball in the air and watch the colors magically flip!
    $9.95–$17.95
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