This isn't particularly far out there, but he tends to wear interesting socks. So a pair of unique socks. Ideally, with penguins on them, because he's now referenced penguins like twice in the past few sessions. Well, and I'd also like to make him a "mix tape" or I guess, what, playlist? Because I'm referencing music all the time, and he's not that into music, so I'd like him to have some sense of what I'm talking about. Even though he likely wouldn't really get the meaning. Or hey, maybe I could give him the song that makes him appreciate music (I tend to be a bit of an evangelist for the music I'm into).