Damn, if I saw this idea last year, it would have made those few headphone days a whole lot better. I have a skate style helmet too, and it would have worked great.
For those that said listening to music is a bad idea... I can't really understand that. If I'm alone, I NEED to be listening to the songs from my favorite edits. It's like a drug, it pumps me up a whole bunch. However, I hate if I have a friend that's banging tunes on the lift ride, and has to say 'WHAT?!' every time I say something to them. Friends ride up together partly to talk to one another, I hate it when it gets disturbed by something like that.