They are on The Naughty List Funny Santa Design Mugs & Glassware

This design features a jolly Santa Claus, pointing his finger with a serious look. Underneath him the phrase "Naughty List" is written. Explore Mugs & Glassware with this awesome design.

Product Features for Ceramic Mug (11oz, 15oz):

Glossy ceramic: The mug is made from ceramic and has a glossy finish.
Vibrant colors: The latest printing techniques provide bright and crisp colors matching your craziest designs.
Microwave-safe: Mug can be safely placed in microwave for food or liquid heating.
Dishwasher-safe: Suitable for dishwasher use.