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Eccentric Contraptions

ISBN：9780715318218

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Eccentric Contraptions

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Lego Crazy Action Contraptions

ISBN：9781570541575

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Lego Crazy Action Contraptions

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Kid Concoctions & Contraptions

ISBN：9780805444469

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Kid Concoctions Contraptions

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Snowball Launchers, Giant-Pumpkin Growers, and Other Cool Contraptions

ISBN：9780806955155

One look at any of these gadgets you can make, and your friends will call you a mechanical genius—o...

Snowball Launchers Giant Pumpkin Growers and Other Cool Contraptions

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Making Marble-Action Games, Gadgets, Mazes and Contraptions

ISBN：9780811728553

Designs for 10 mind-boggling marble contraptions. Each can be constructed in a weekend. Step-by-ste...

Making Marble Action Games Gadgets Mazes and Contraptions

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Kid Concoctions & Contraptions

ISBN：9780966108880

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Kid Concoctions Contraptions

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Kid Concoctions, Creations & Contraptions

ISBN：9781573104555

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Kid Concoctions Creations Contraptions

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Contraptions

ISBN：9781585679805

Here is a splendid treasury, the definitive volume of the comic fantasies of the great English ar...

Contraptions

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Lego Crazy Action Contraptions

ISBN：9781591743415

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Lego Crazy Action Contraptions

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Lego Crazy Action Contraptions

ISBN：9781435226388

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Lego Crazy Action Contraptions

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Snowball Launchers, Giant-pumpkin Growers, and Other Cool Contraptions

ISBN：9781435275157

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Snowball Launchers Giant pumpkin Growers and Other Cool Contraptions

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Lego Crazy Action Contraptions

ISBN：9781591747697

LEGO? Crazy Action Contraptions is a brand-new book of brand-new, high-performance projects. From t...

Lego Crazy Action Contraptions

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