This is a mug shaped like the grim reaper carrying a surf board marked for Dead Man's Isle.
From Munktiki:
"This bad boy stands eight inches tall and holds 24 fluid ounces of your favorite tropical treat. Each reaper comes with a Ohana is Dead scythe swizzle, but don't worry, your reaper is a helper and can hold that swizzle for you. The tropical reaper is an edition of 100 and masterfully crafted by the fine folks at Munktiki Imports."