This is the Series 21 CMF Shipwreck Survivor Minifigure. This guy is wearing some old cutoff blue jeans, has a shell necklace around his neck, and is holding a green bottle with a message. His buddy is a cute little orange crab.
This is one of the 12 different Minifigures that originally came in a sealed lime green mystery bag.
I will open the poly bag to verify the item, transfer all the contents to a new ziplock bag, and send it to you.