There doesn't seem to be a lot of creative innovation going on in men's toys. Women's toys moved on from being just about rubber penises a long time ago. But for men, it's still: 'Oh, it should look like a vulva / mouth / anus' when they design sleeves. I know men are supposed to be more visual, but I suspect that if they want to pretend they are fucking a real person, they do the same as us girls do and close their eyes, rather than looking at the mouth shaped opening and being turned on by that. (Correct me if I'm wrong, guys!) Tenga seems to be one of the few manufacturers that doesn't assume that a male toy should look like an orifice.
Hopefully some good designers will put their minds to the problem and come up with some real innovations.