This is a canoe-shaped bowl with three skulls in it.

From Trader Brandon's website:

"The Skull Canoe mug reminds you to watch your head while navigating these waters with our canoe, measuring 9" wide! Comes in a natural stoneware finish, produced by our friends at Munktiki. Holds 12oz with ice!"

A bone white glazed version was also released at the same time.