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- Solar Magnetic Levitation Model Mendocino Motor Engine Science Toy - Enginediy(17)
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Sold out - Stirling Engine Kit DIY Single Cylinder Stirling Engine - Ideal Engine Model Gift for Your Kids Enginediy(8)
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- $24.99
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- $24.99
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Sold out - Low Temperature Stirling Engine Motor Coffee Cup Stirling Engine Kit Education Toy(14)
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- $24.99
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- $24.99
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Sold out - Low Temperature Stirling Engine Kit DIY Steam Heat Engine Motor Toy - Enginediy(13)
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- $34.99
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- $34.99
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Sold out - DIY Acoustic Levitation Electronics Makes Learning Kits for Science and Small Experimental Standing Waves(5)
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- $22.99
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- $22.99
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Sold out - Mini Vertical Mendocino Motor Solar Magnetic Levitating Motor Engine Science Toy - Enginediy(11)
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- $49.99
- Sale price
- $49.99
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Sold out - Mini Singing Tesla Coil Music Kit Wireless Transmission Experiment Desktop Toy - Enginediy(7)
- Regular price
- $39.99
- Sale price
- $39.99
- Regular price
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$0
Sold out - Low Temperature Stirling Engine Motor Coffee Cup Stirling Engine Kit Education Toy(7)
- Regular price
- $27.99
- Sale price
- $27.99
- Regular price
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$0
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