I have a son (my eldest) who is keen on DIY and creative projects - and who LOVES extrinsic rewards. (He will do anything for a scout badge!) Imagine my delight to find this site: diy.org where members are encouraged to complete creative challenges to collect SKILLS patches. There is so much on this site for all my boys - illustration, design, nature, engineering .... It looks amazing, and I can't wait to get them signed up! Check out the blog too, a showcase of some of the amazing things members have created. Brilliant.