For those who love eco toys, here’s a 6-in-1 Solar Powered Robot Kit where you can make a dog, a boat, a moving plane, a car, a windmill and a desktop plane! Although the robot kit is aimed at kids, I’d be more than happy to have one of these on my office desk. Using just 25 parts and no screws, you can easily make each of these designs using just solar energy for power.
The kit costs surprisingly little at just £13 (around $20). Although the kit relies on solar energy, you can just power the kit using a bright 50 Watt light bulb. It’s bound to keep kids (big and small) amused for a little while.