I'm no woman of the sea but I like anchors. Always have, always will.
Elizabeth and James 'Sea Creatures' Anchor & Sapphire Earrings, $250.00 at Nordstrom.
I typically shy away from things with "rhinestones" in the title but here's an (almost) identical pair of earrings for less than the cost of lunch:
Rhinestone Anchor Earrings, $3.80 at Forever 21.