Forgive me if this has been suggested before or if it's impossible to do, but sometimes I have something in my inventory that might be worth a bit, and it seems a shame to sell it. I'd like to see a search wishlist button on the items menu. Imagine clicking it and seeing a bunch of people's wishlists and being able to send them something they'd like randomly? I'd rather do this then let an item either stagnate or sell it off. :)

You can already do this via the wishlist page. If there's a way to add it to the item tooltip without cluttering it, however, I'd support it. I'd definitely use it more if it were right there.