Marble Run ToyKinetic Desk ToyStem GiftCyclone Marble Run: Kinetic STEM Desk Toy - Motorized or Manual3D-printed, triple-lift motorized (or hand-crank) marble machine — a hypnotic STEM desk toy with glow options and five stainless marbles included.At 3DCreationsofRIUSD 29.95See gift
3d Printed MarbleMarble MachineMarble RunHandcrafted Kinetic Marble Run Machine – Desktop Fidget Toy, STEM stimulation toyHand-tuned 3D-printed kinetic marble machine — a mesmerizing, battery-free desktop fidget and STEM gift that cycles 30 steel balls via an Archimedes screw. Handmade in the USA; fully assembled and ready to run.At MarbleMachinesShopUSD 79.97See gift
