DIY: 3 in 1 Kids Play Tent (a friend made something similar, but used a piece of PVC pipe to curve at the top, drilled the ends into the wall, shirred the fabric panels over it, and used hooks to suspend it from the ceiling)
A teepee is the perfect place for a kid to play! A little one would love to hide inside and throw a tea party or build a city out of blocks. Or you could fill it with throw pillows to create a reading nook. It has windows to let in light! And when playtime is over, the teepee can fold up like an umbrella for storage.