Hang an outside fort Forts can be fun outside, too. Just grab a shower curtain and hook the rings onto a hula-hoop. Suspend it from a tree and there you have it: a clean, cool place to read, play with action figures or use as home base.
Balloon Dart Board I say, let the kids blow up the balloons and you staple them to the board! For a party, you could fill each balloon with a number that wins a corresponding prize. Just pick out balloon colors that match the holiday or party theme.