If you want to perform a little initiative to your children you may select wood Pallet tree house project for children. Wood pallets for children are very completely happy if you make a DIY Pallet tree house.
I would LOVE to someday transform our back shed into an art studio with lots of natural light! [A backyard painting studio in Williamsburg. (this is a good idea: a small shed with windows and french doors for walls to let in light)]