bornach

Instructables

• 

  Electronic Flapping Butterfly

  9 1.7K
• 

  Magnetic Spinning Desk Toy

  110 7.6K
• 

  A Spigot That Streams Digits of Pi

  78 11K
• 

  John Conway Doomsday Device

  18 3.5K
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  Improvised Lightweight Desk Extension

  1 916
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  Cardboard Ratchet Mechanism

  58 9.5K
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  Reusing Old LED Christmas Decorations by Remixing Them

  3 511
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  Mathematical Magical Emoji Cards

  12 1.7K
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  Elusive Pumpkin Ghost Decoration

  2 1.4K