Last week, I bought myself something very
sillifluous.
A bright yellow sponge ball with the cutest smiley face
painted on it.
I can play with it inside the house without worrying
about breaking stuff. A ping-pong ball is equally harmless,
but it makes an irritating tak tak sound; this one only makes
a dull bop.
It is slightly less bouncy compared to a rubber / ping-pong ball,
but I am not complaining. : )