Quote from DarkAssasin24
It can be TNT canons or redstone Caculators. JUST GIVE ME AN IDEA!
HEREis a link to a forum thread with a map that has art/engineering/design challenges. You download the map, do 1 or more challenges, send it back, and your work gets added to the official map file. It currently has 8 challenges ranging from designing a floor, furniture, to building a 3 story tree farm tower, or a city park. Check it out, it's updated frequently with more challenges.