The PBS show Design Squad is back in its second season (I've yet to see it, but it looks like fun!). In conjunction with the new programming, PBS is hosting a contest to turn your trash into treasure. If you're between the ages of 5-19 (or teach kids in that age bracket) consider participating in the Design Squad contest. The winner takes home $10,000 along with a Dell laptop and a trip to Boston.
The site also features 15 engineering challenges, as well as guides for parents and educators.