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Stark Vehicle-mounted Solar Aircraft Shape Motor Solar Toy |
$24.99 |
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$24.99 |
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Mini Stirling Engine Motor Model - High Performance Pocket-Sized Engine - Enginediy |
$39.99 |
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$79.98 |
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Mini Hot Air Stirling Engine Single Cylinder Engine Motor Model STEM Educational Toy - Enginediy |
$20.99 |
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$20.99 |
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Mendocino Motor Solar Magnetic Levitation Motor Engine Science Toy |
$39.99 |
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$79.98 |
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Stirling Engine Kit Unassembled Engine Kit Electricity Generator with 4 LED Light - Perfect Gift Choice |
$49.99 |
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$49.99 |
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Mini Singing Tesla Coil Music Kit Wireless Transmission Experiment Desktop Toy - Enginediy |
$39.99 |
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$79.98 |
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Multi Stage Steam Turbine Physics Equipment Demonstration Educational Toy Enginediy |
$34.99 |
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$34.99 |
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DIY Acoustic Levitation Electronics Makes Learning Kits for Science and Small Experimental Standing Waves |
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$45.98 |
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Mini Vertical Mendocino Motor Solar Magnetic Levitating Motor Engine Science Toy - Enginediy |
$49.99 |
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Magnetic Levitation Module DIY Maglev Furnishing Articles Kit Precise 150g DC 5V Digital Movement Module |
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Solar Magnetic Levitation Model Mendocino Motor Engine Science Toy - Enginediy |
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5 Cylinder Radial Engine Model Kit that Works - Build Your Own Radial Engine - TECHING 1: 6 Full Metal Radial Engine Model Kit 250+Pcs |
$469.99 |
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$469.99 |
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Toyan FS-S100 4 Stroke RC Engine Four Stroke Methanol Engine Kit for RC Car Boat Plane |
$229.99 |
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$229.99 |
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Desktop Stirling Engine Kit All-metal Stirling Engine DIY Kit Set Toy - Enginediy |
$29.99 |
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$29.99 |
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RETROL Full Metal Beam Engine Steam Engine Model Kit with Horizontal Boiler with Centrifugal Regulator Flyball |
$299.99 |
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$299.99 |
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2 Cylinder Stirling Engine Electricity Generator with Bulb Stirling Engine Motor Model - Enginediy |
$429.22 |
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$429.22 |
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