Answer:
What has 3 feet but cannot walk?
Whoever makes it, tells it not. Whoever takes it, knows it not. And whoever knows it wants it not
As beautiful as the setting sun, as delicate as the morning dew. An angel's dusting from the stars. That can turn the Earth into a frosted moon.
We are five little objects of an everyday sort. You will find us all in a tennis court.
They can be harbored, but few hold water. You can nurse them, but only by holding them against someone else. You can carry them, but not with your arms. You can bury them, but not in the earth.
People take me on walks and I run and have fun. What am I?