I searched for this idea but couldn't find it, so I'm posting it. Sometimes I just want to give someone furniture, but I don't want to mail it or add someone just to do so. Often this also happens when people are offline as well. It'd be nice to be able to leave a piece of furniture with the butler and this is especially useful for those with more than 1k friends.
Alternatively, a furniture gift bag as it were would also be a good idea.