I have a strap-on, without extra stimulating things on "my end". It is a rather cheap thing, something we wanted to try out even before I came out as trans. Now I am the only one who uses it, she never uses it on me anymore. (Not because she doesn't want to, but because I don't feel comfortable with that.)
The harness doesn't stay on my hips very well, and sometimes it's all a bit loose, so I'd like to get another, somewhat more realistic, one.
But as you guys already mentioned, realistic strap-ons are hard to find. I don't really know why. Perhaps they tailor these items for lesbians who do like the penetration but not the look and/or feel of something masculine in their beds?
I wouldn't be opposed to a double-dildo thing, as I can have pleasure from being penetrated as well. Whatever floats your boat, right?