Make Your Own Contraptions: Design and Build 50 Marvellous Machines

Build Your Own Chain Reaction Machines: How to Make Crazy Contraptions Using Everyday Stuff--Creative Kid-Powered Projects!

Tinkering: Kids Learn by Making Stuff (Make)

Rube Goldberg's Simple Normal Humdrum School Day

Rube Goldberg: Inventions!

Gizmos & Gadgets: Creating Science Contraptions That Work (& Knowing Why) (Williamson Kids Can! Series)

4 Pack Copper Foil Tape with Conductive Adhesive for EMI Shielding, Slug Repellent, Paper Circuits, Electrical Repairs, Grounding(1/4inch)

Musical Inventions: DIY Instruments to Toot, Tap, Crank, Strum, Pluck, and Switch On (Make)

Box!: Castles, Kitchens, And Other Cardboard Creations For Kids