Showing 51–100 of 121 resultsSorted by popularity

Stirling Steam Engine

Stirling Steam Engine

$144.99
Light Up Newton's Cradle LED

Light Up Newton’s Cradle LED

$29.99
3D Maze Puzzle Ball

3D Maze Puzzle Ball

$89.99
DIY Wooden Robot Kit

Robot Building Kits (4pcs)

$79.99
Bike Chain Fidget Toy

Bike Chain Fidget Toy

$24.99
Wooden Brain Teaser Puzzles

Wooden Brain Teaser Puzzles (9 Pcs)

$49.99
Tesla Coil Gun

Tesla Coil Gun

$129.99
Tesla Coil Speaker

Tesla Coil Speaker

$114.99
Tesla Coil Toy

Tesla Coil Toy

$119.99
Robot Dragon

Dragon Robot

$99.99
Decorative Gyroscope

Gyroscope Decoration

$279.99
Electric Spinning Top

Electric Spinning Top

$32.99
Wooden Newton's Cradle

Wooden Newton’s Cradle

$114.99
Nouveauté
Model Jet Engine TR900, Turbofan Cutaway

Model Jet Engine TR900, Turbofan Cutaway

$155.99
Nouveauté
12-in-1 Robot Kit for Kids, USB Rechargeable

12-in-1 Robot Kit for Kids, USB Rechargeable

$59.99
Nouveauté
Car Engine Model Kit, Motorized Supercar V8 (737 Pieces)

Car Engine Model Kit, Motorized Supercar V8 (737 Pieces)

$119.99
Nouveauté
Wooden Drone Kit with Remote Control

Wooden Drone Kit with Remote Control

$107.99
Nouveauté
Red Arrow Stirling Engine

Red Arrow Stirling Engine

$119.99
Nouveauté
Stirling Engine Helicopter

Stirling Engine Helicopter

$359.99
Nouveauté
Transparent Engine Model V8 Brick Kit (478 Pieces)

Transparent Engine Model V8 Brick Kit (478 Pieces)

$119.99
Nouveauté
Space Shuttle 3D Wooden Puzzle

Space Shuttle 3D Wooden Puzzle

$143.99
Nouveauté
Stirling Engine Fan

Stirling Engine Fan

$119.99
Nouveauté
Black Stirling Engine Model

Black Stirling Engine Model

$119.99
Nouveauté
Fidget Gun Clicker

Fidget Gun Clicker

$65.99
Nouveauté
Galton Board

Galton Board

$119.99
Nouveauté
Solar Wind Turbine Model

Solar Wind Turbine Model

$44.99
Nouveauté
Orbital Solar System Desk Toy

Orbital Solar System Desk Toy

$53.99
Nouveauté
Tensegrity Table

Tensegrity Table

$44.99
Nouveauté
Kinetic Sand Table

Kinetic Sand Table

$539.99
Nouveauté
Kinetic Art Sculpture

Kinetic Art Sculpture

$38.99
Nouveauté
Metal Oloid

Metal Oloid

$59.99
Nouveauté
Perpetual Motion Machine Toy

Perpetual Motion Machine Toy

$83.99
Nouveauté
Magic Spinner

Magic Spinner

$29.99
Nouveauté
3D Wooden Plane Puzzle

3D Wooden Plane Puzzle

$50.99
Nouveauté
Wooden Marble Run 3D Puzzle

Wooden Marble Run 3D Puzzle

$29.99
Nouveauté
Big Ben 3D Puzzle

Big Ben 3D Puzzle

$53.99
Nouveauté
Violin 3D Puzzle

Violin 3D Puzzle

$89.99
Newton's Chaotic Pendulum

Chaotic Double Pendulum

$109.99
DIY Pedagogical Wheel Game

Wooden Ferris Wheel Kit

$24.99
DIY Electricity Education Kit

DIY Electricity Education Kit

$44.99
DIY Vacuum Cleaner Physics Science Game Kit

DIY Bottle Vacuum Cleaner Kit

$44.99
DIY Ball Launcher Game

DIY Ball Launcher Kit

$19.99
Mini Strandbeest DIY

Mini Strandbeest Kit

$24.99
Solar Energy Satellite

Solar Satellite Kit

$24.99
DIY Wooden Boat Toy

DIY Bottle Boat Science Kit

$39.99
Hydraulic Arm Toy for Kids

Hydraulic Arm Kit

$34.99
Kids' Hydraulic Mechanics Set – Elevator

Hydraulic Scissor Lift Kit

$24.99
Construction Marble Run

Wooden Marble Run Mechanical Puzzle 130 Pieces

$139.99
Wooden Domino Game

Wooden Domino Set

$44.99
Marble Run Circuit Game

Space Rail Marble Roller Coaster

$119.99
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