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Mendocino Motor Solar Magnetic Levitation Motor Engine Science Toy |
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Mini Singing Tesla Coil Music Kit Wireless Transmission Experiment Desktop Toy - Enginediy |
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Magnetic Levitation Module DIY Maglev Furnishing Articles Kit Precise 150g DC 5V Digital Movement Module |
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Desktop Stirling Engine Kit All-metal Stirling Engine DIY Kit Set Toy - Enginediy |
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Low Temperature Stirling Engine Motor Coffee Cup Stirling Engine Kit Education Toy |
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Solar Magnetic Levitation Model Mendocino Motor Engine Science Toy - Enginediy |
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Mini Hot Air Stirling Engine Single Cylinder Engine Motor Model STEM Educational Toy - Enginediy |
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$41.98 |
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Stirling Engine Kit DIY Single Cylinder Stirling Engine - Ideal Engine Model Gift for Your Kids Enginediy |
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Mini Vertical Mendocino Motor Solar Magnetic Levitating Motor Engine Science Toy - Enginediy |
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Steam Engine Model DIY Kit Children Steam Engine Experiment Model - Science Museum at Home |
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$29.99 |
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Low Temperature Stirling Engine Motor Coffee Cup Stirling Engine Kit Education Toy |
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$27.99 |
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Mini Stirling Engine Motor Model - High Performance Pocket-Sized Engine - Enginediy |
$39.99 |
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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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