Building a Chicken Coop - DIY Kids Fort which could be readily altered to make a nice LARP or Ren Faire building. Building a chicken coop does not have to be tricky nor does it have to set you back a ton of scratch.
Awesome kid fort idea: king size duvet cover plus exhaust fan facing into duvet cover=awesome fort. Or use a king size bottom sheet over a queen size bed and face fan inwards. Great hot summer night idea for kiddos.