baking a Dollar Tree mug at 250 degrees for 2 hours provided the best results. What is the best way to make, bake, and care for Sharpie mugs? A test of different temperatures, times, and kinds of washing to find out.
DIY Coffee Mugs = 4 dollar store mugs + sharpies + oven for 30 mins) - which I did, And I made sure I used my sharpies, not the generic ones. I was able to wipe the sharpie images right off. (use oil based sharpies)