I hear Komodo Dragons are nice; their minty-fresh breath is their biggest, and most unusual, quality.
If you don't want that extreme you can try to get a chinchilla. They can be difficult to obtain but they can also be very good pets. They have naturally oily skin so you have to provide a special volcanic dust for them to roll in; I find their rolling to be really "neat". One bad drawback is that you aren't supposed to pick them up. Chinchillas can be fragile animals; it is preferred that you sit on the floor and let them get into your lap. They also like quiet, non-excitement areas so they are a "no no" if you have loud kids or enjoy turning your stereo up to super sonic levels.