Toys, toys, toys!
VV and Analise have given you a pretty exhaustive list with most of my favorites!
The Hitachi Wand is my best friend! I am hooked! It's not for the faint of heart though. It plugs into the wall. No sissy batteries!!!! I have to disagree about the clit desensitization though. I have used the Wand pretty much every day for nearly 3 years. Sometimes several times a day. My clit still responds to feather light licks and sucks and flicks.
My next favorite toy is a glass dildo. Besides looking pretty, you can heat it up or put it in the freezer!
Graduated anal beads are always fun too. They look like a string of beads each one bigger than the last with a loop at the end.
I also love my big dildo with a handle on the end of it. It makes it really easy to lay back and fuck myself with it. It's also a great visual for boys who like toys.
If you are interested in a strap-on, I would also definitely recommend Womyn's Ware. If you buy a proper harness, then your clients can bring their own dildo to attach to it. It's more health safe that way. Mine has 3 rings sizes that attach to hold different sizes.
If you are ever in Seattle, check out Toys in Babeland. It is hands down the BEST sex store I have ever been in.
Don't be afraid to ask questions!!! The people who work there have heard everything. Trust me on that one.
Have fun!
bella