Showing 11–20 of 66 results

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  Bone Bridge Halloween STEM Challenge

  $3.98
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  Build a Boat STEM Challenge Mini Bundle

  $4.98
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  Candy Cane Calamity Christmas STEM Challenge

  $3.98
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  Candy Container Valentine’s Day STEM Challenge

  $3.98
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  Card Towers STEM Challenge Mini Bundle

  $4.98
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  Cards in the Clouds Valentine’s Day STEM Challenge

  $3.98
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  Carrot Carriage Easter STEM Challenge

  $3.98
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  Christmas / Winter STEM Challenge Bundle

  $9.98
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  Corn Cultivator Thanksgiving STEM Challenge

  $3.98
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  Create-ure STEM Challenge

  $4.98