In da disc-o-thek, the beat is thumpin',
These hard drive discs get yo' party pumpin'!
For only 45 cents, you can make a disco ball that is literally made out of discs. Or you could make a mirror for a medium-sized rodent, such as a guinea pig or rabbit. Or you could throw it like a frisbee to the wind, along with your caution and inhibitions. The choice is yours.
Just so you know, they're approximately 3.75" in diameter, and they're pretty thin. Their inner holes (teehee) are just under an inch. They're made out of something vaguely metallic, although we're not exactly sure what.