Beachcombing: Interloper players, now I wanna know. Your rarest find, please.

Guys this game has something I love. These gifts on all coastal regions sometimes are very very nice surprises. I play that game for a while now, most of that time I played on Interloper mode. But still, after all these hours, beachcombing surprises me now and then. My 2 rarest finds till now: Flare gun (inside a stranded boat), Mackinaw Jacket (inside a chest). Tell me your rarest finds please.