This mug is shaped like a standing Santa wearing a hula skirt and a removable hat with straw hole.

From BarConic:

"Get into the Christmas spirit and snag this festive Hula Santa tiki mug. This mug is the perfect item to go with your holiday collection. It features Santa dressed in a skirt of leaves and wearing lei of flowers around his chest. Santa's hat on this mug is removable and includes a hole on the side of the hat for easy straw access. This mug is made of a beautiful glazed ceramic so that the colors and shine will last for a long time. This tiki will hold 14 ounces of liquid and measures 8.25 inches in height with a rim diameter of 1.75 inches."