You mean something like when you drop money in it, music plays.
Hmmm... possibly, you could try having a standard music circuit hooked up to a push on, push off switch, so when the switch is hit by the money it activates a one time musical chord, however this would only work one time, then the next it wouldn't, then the next it would.
I honestly don't know what to tell you, you may want to fiddle with a normally open pushbutton in a similar fashion, that's what arcade machines use, but I don't know the circuitry well enough to design one that will continue to work when the button is pushed only for that split second.