Yoyos - Possibly the most coolest toys on earth

I have yet to break a yo-yo. I have four. (And a Slinky, lol)
Tricks I can do include:
Sleep
'Round the world
Throw it down, have it circle inside of my wrist and go back down, which I've forgotten the name of
Throw it out (perpendicular to the ground) and have it return, also forgotten the name of
Cat's cradle

A good yo-yo is freaking EPIC

I still have'nt mastered the up down bit yet.

I wish my yoyo could sleep...
Edit: When they hit a wall, ground or person they can break easily