Party games you can play with balloons. Or rainy day play.
Balloon ping pong/volley ball
40 Ways to Keep a Toddler Busy Oh, I am loving this site!
Marble Races with a cheap pool noodle (keep kids occupied for hours.)
Okay, why didnt we think of this?
Make a hovercraft = awesome!
Balloon Ping Pong..hours @ Heart-2-HomeHeart-2-Home
Camp Mom! 20 Activities to Make Summer Awesome
This would be a great activity for an indoor recess. The children could make the ring and decide what the game rules are.
MAKE TRACKS - Transform flipflops into animal track shoes using a hot glue gun and sheets of colored craft foam.
"spy training" and other fun indoor (rainy day)