Well it appears many of us have come to the same conclusion. (Of course that doesn't matter because it's of course BC's choice.
but we all seem to be ending up at navy blue anchors, rainboe, and plad.
I would say Ice cream or sea creature, but then you’d have two navy blue and you may want to mix up his wardrobe a bit more. The plad would be a nice fall/Christmas one, but the orange would be a nice summer time.