05:55
Catapult (3D Printed) with Leaf Springs
02:38
Fidget Knife (3D Printed)
05:13
Burning MatchStick Shooter - Fire Arrow - 3D Printed Crossbow
03:37
Powerful Gauss Starter Cannon - 3D Printed Gravitrax Extension
03:45
3D Printed Endless Calendar - Rotating Perpetual Calendar
03:38
3D Printable 6-Disc Semi-Automatic Shooter
03:14
Toroidal Launcher Assembly and Review
03:26
3D Printed Rubber Gun / Rubber-band Pistol
00:43
3D Printed Fully Functional Toy Crossbow that Shoots Arrows
01:23
Swatting Flies in Style: 3D Printed Fly Swatter Gun!
03:03
World's First REAL Marble Cannon
02:07
Magnetic Kickback - Reverse Gauss Cannon - 3D Printed Gravitrax Extension
01:23
Powerful Magnetic Marble Cannon (Easy Reload) - 3D Printed Gravitrax Extension
03:07
Triple Marble Cannon - 3D Printed Gravitrax Extension
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