Grosgrain. This is AWESOME!!!!
25 DIY Hideouts: Forts, Tents, Teepees and Playhouses | The New Home Ec. This uses tension rods in a hallway
tension rod play house.
tension rod hallway tent
juguetes y juegos-originales y divertidos -original toys and games
Curtains on tension rods below the table
Doorway puppet theater. This is too cute, and would be super easy to make. Could put up in doorway or hallway with tension rod.