The clicking sound they make is annoying yet fun to hear at the same time: iGrad: Music
to My Ears
When they're on repeat at a party, you can venture through the owner's music library and play their most embarrassing music: Top 10 College Party Themes
Parents think they're too expensive, so for Christmas they'll just get you something of equal value, like an old-school Sony Walkman:
'Tis Better to Receive