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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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Marx Generator Kit 10 Stage High Voltage DIY Lightning Experiment Educational Model - Enginediy |
$139.99 |
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$139.99 |
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Stirling Engine Generator Model DIY Assembly Kit Physical Experiment |
$34.99 |
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$34.99 |
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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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ENJOMOR Vintage 4-Blade Heat Powered Thermal Stove Fan Stirling Engine Physics Science Experiment Toy |
$149.99 |
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$149.99 |
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STARK SSTC Music Tesla Coil Integrated Arc Extinguishine Tesla Teaching Model High-tech Toy |
$129.99 |
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$129.99 |
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Metal Steam Turbine Engine JT-II Desktop Engine Model - Enginediy |
$109.99 |
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$109.99 |
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Solar Magnetic Levitation Model Mendocino Motor Engine Science Toy - Enginediy |
$39.99 |
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$39.99 |
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