Question: do diy sharpie mugs work?
Answer: I can tell you from experience that a regular Sharpie, baked or unbaked, will just wash right off the mug. You HAVE TO use an oil-based paint Sharpie. This will help make your design permanent. After you've designed the mug in oil-based Sharpie, you'll need to let the design dry for at least 24 hours.