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Subjects
Spirograph
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Valdis Torms
86,630
Math Spinner Toy
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Paulo Ricardo Blank
63,892
Combustion Engine
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Jack Imakr
76,884
Triceratops prorsus Skeleton
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Rogar Kersoe
75,330
Spinning Balancing Bird
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Mark Ledwold
40,369
Geared Heart, Hand Crank Edition
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Greg Zumwalt
51,198
Multi-Color Cell Model
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Mosaic Manufacturing
23,828
Support free strong Bolt
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Jack Imakr
45,245
Perpetual Motion, da Vinci Style
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Greg Zumwalt
42,247
Leaf Veins System
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3D Custom Print
28,256
Pyramids of Giza - Egypt
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MiniWorld3D
31,573
Newton's Cradle
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Corey Schwenke
35,992
Colosseum in Rome, Italy
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MAP
47,608
velociraptor claw
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Marco Villa
20,178
Screw
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Kirby Downey
34,733
Galileo escapement clock
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Jacques Favre
25,869
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