Just some markers and a mug “they” said. Just put it in the oven they said. Here is my DIY personalized mug… Supplies: Coffee Mug(s) Oil Based Sharpie(s) Oven Letter Stickers (optional) Cookie Sheet Time: 10-20 minutes to create 1 hour to cook Directions: Wash and dry mug. Place Sticker(s) on mug and get creative. […]