My million dollar idea - feel free to try it yourself. The idea is that you can make money by selling white earphones. You see, the only people who have white earphones at the moment are iPod owners. You see them all over the place [well, OK, you see them all over the place if you travel a lot in the New York subway], and they all look so smug with their little white earphones, the white wire disappearing discreetly into their pocket. Everyone thinks they are so cool. Well, if you sold white earphones, for about 10 of your local currency units at a time, then lots of people could pretend that they are cool iPod owners. It's probably really cheap to make these earphones, so you could make loads of money. Cool, huh?

You find some weird things if you spend too much time hanging around the US patent office -- like this one [if that doesn't work, then go to USPTO.gov and search for published application number 20030084594 ].