Little children love to play with them in the bathtub.
You can get a slingshot and use them to pelt politicians at rallies without hurting them too much.
A handful of them tied together will replace the float in your toilet tank.
Glue them end to end to make a humanitarian cattle prod.
Throw them in front of parades so the marchers will go skittering across the street as if they were rolling on marbles.
Put them into your pond so the frogs can have log rolling contests.