Apparently for a mere $185,000 you can be part of the next generic Top Level Domain group. Anyone can create their own .anything. Some of the new ones already taken include .rich, .sexy, .ninja, .pink, .email, .buzz, .coffee and .domains. What gTLD would you take, make if you could?
But you probably would go broke... I think you mean .millionaire (originally and sometimes still millionnaire)