So you know how bars have jukeboxes? For playing music?
Yeah, there's an app that lets you pay for songs on the jukebox. It's not a bluetooth app, though. It works through the internet. Which means you can pay $2 to make a jukebox somewhere in San Francisco play "Achy Breaky Heart".
So you could randomly bomb bars with, say… 21 plays of What's New Pussycat pretty cheaply. Maybe multiple times.