[Eclipse GSX 61]

Alright before people start flaming I'm looking for very small gauges as in 18 gauge. I don't really plan on gauging or stretching at this point but does anybody know where to get ahold of some 18 gauge piercings? I'm aware this is the average piercing size, but I'm looking for some of the double circle with the bar in the center and the hole in the center of the bar if that makes any sense. I've been looking all over and I've only found 16 gauge, but I also have some regular piercing I'd like to wear on occassion.