I got one of those romantic body kits with the oils, body dust, and bubble bath for my friend and her girlfriend as a "congrats on finding intimacy again" thing. I think the romance kits like that are generic enough to appeal to most people I know without it being awkward.
I haven't bought them toys specifically but if I have toys that I don't use that can be sterilized and they want it they can have it. Same goes for toys I get that have never been used that I won't ever use I give those away. I have never bought anyone a toy and no one has bought me any.