I've actually been thinking of ways I could send vibrations through the dildo in something like this. I've done it before, sort of, in ways such as having a sub on the bondage stool with the dildo jack underneath it, and a vibrating wand secured on an adjustable arm, held up against the base of the dildo. Not really ideal though, especially since gravity is working against me there and the wand tends to slide down a bit, weakening the vibrations or making it so the sub doesn't feel them at all. Of course some kinky stores sell things like vibrating plugs, maybe even vibrating dildos, but those tend to be super weak compared to the wand that I have. So I would definitely want to rig my wand somehow vs. relying on the weak vibrations that come from those kinds of toys. I think kinky stores often rely on the wow factor when reading the description, and most customers don't really think about things like just how weak the vibrations might be, since it's typically a new idea for them and they're happy to just have that functionality in any form. Me on the other hand, if I decide I'm going to do something, I'm going to do it...and I don't want to half-ass it if you know what I mean? No pun intended. ;-)