Gifting: Great as a funny secret Santa gift or as a keepsake for yourself! Designs: Choose from poinsettia, Christmas tree, jingle balls or love designs. Material: Made using sturdy ceramic so it's built to last over the years. Other features: An 11oz mug that's microwave and dishwasher safe. Naughty Xmas mug: Get a Christmas novelty willy mug! | Xmas Novelty Willy Mug | Wowcher