Instructions for designing and building tops and yo-yos in different shapes and with various materials.

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Series

Featured Series

4 released books

Boston Children's Museum Activity Books

Boston Children's Museum Activity Books is a 4-book series first released in 1986 with contributions by Bernie Zubrowski.

Wheels at Work: Building and Experimenting With Models of Machines
Tops
Mirrors
Mobiles: Building and Experimenting With Balancing Toys

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