Spiral-bound edition from Klutz (October 1, 2010)
| details & prices
| 197 pages | 7.50 × 9.00 × 0.75 in. | Rec. grade levels 3-4 | 1.75 lbs | List price $19.99About:
With an all-star team from Klutz and IDEO, we generated 162 never-before-seen contraptions that are brilliant, useful, and ridiculous, from a helium-filled hide-a-bed (hop out of bed and it hides on the ceiling) to a tricycle-lawnmower combo (puts wasted play energy to work) and so much more.