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Member Collections > Mark Havens - Mark's General Collection
4X4X4

5X5X5

DODECAHEDRON

SPHERE

STAR

MOVING HOLE

MOVING MARBLES

MOVING TILES

FOLDING

ELECTRONIC

PATTERN MATCHING

OTHER MECHANISMS

GAMES



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Featured:
Genius Hockey Puck
$18

On Sale:
Brain Twist
$16  $13


On Sale:
Turbo Mind Twister
$19  $15.2