Just put up signs? Like, one of those "missing person" signs, except it's "missing boat". Or "found boat" since you found their... boat identity.

No wait, you're right, if you knew that now then they wouldn't have known it because it was taken away. Duh.

Anyway, I got... this thing. [She pulls out the Tiger Gauntlet that she got from her pull, holding it in a hand.] Not really my style, but, uh... y'know, at least it looks cool?