Chrystal, I'd be willing to play a female sub if no one takes up your offer. It's been awhile since I've had a character like that and to be honest, right now I'm full with all the male doms I've been talked into writing, so switching back into a female sub for awhile would be kind of nice.
She could work at the sex shop as a model for the items that are on sale, giving her much experience on what the items feels like and how well the customers might enjoy them. Grins, someone that sells the items should know how well made they are, etc, so using them on her sub/forcing her sub to experience them sounds kind of interesting.
As for RL, I've been to some of the local meetings for the BDSM group, as well as some of the meetings with some of the local Poly groups.