At your next Birthday party you can do this fun game, and it requires very little set up.
Grab 2 old tshirts, towels, or other scrap cloth that you might have lying around for each guest.
Set up a start line and a finish line.
Start each guest at the start line. They then drop a cloth in front of them and step onto it. Then they drop the second cloth in front and step on it.
Now they have to reach behind them and grab the cloth and drop it in front of them and step onto it.
The process is repeated until the first person makes it to the finish line.
If anyone steps off of their cloth or touches the ground or floor, they sit out the rest of the game.