This is a mug shaped like the grim reaper holding a surfboard and carrying a swizzle stick scythe.
From their website:
"Skulls on skulls on skulls! This surfing reaper is adorned with a unique design from the one and only Sketchy Tank! 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 Sketchy Tank reaper is an edition of 125 and masterfully crafted by the fine folks at Munktiki Imports."