- Buy some white cups or mugs. You can find them in superstores, thrift stores, dollar stores, and online.
- Pick a sharpie. For long-lasting results, choose oil-based paint sharpie markers. Regular sharpie ink can come off even after baking. Pick a color to use on your mug. You can stay simple and choose one color, or be more ambitious and use multiple. If you're sticking to one color, then black is usually a good choice, given its striking contrast to the white background of the mug.
- Start drawing. Decide what you want to put on the cup, and maybe practice drawing it on a piece of paper before drawing on the mug. Pick a meaningful quote or a cute graphic to decorate the mug with, and get inspired by mugs being sold on Etsy or by googling examples of sharpie mug projects online.
- Dry it out. Let your mug dry for a few hours or overnight before placing it into the oven. You can also draw over it again if you'd like to make sure the pattern doesn't come off in the wash. If you draw over it again, be sure to leave it out to dry again before baking.
- Bake it. Bake the mug in the oven for 30 minutes at 350°F. Remember to place the mug in the oven before it heats up and leave it in until the oven cools completely so there won't be any cracks. You can choose to bake the mugs twice to really set in the sharpie drawings.
- Care and wash. Hand wash the mug gently instead of throwing it in the dishwasher, as a machine washer may ruin the design.
Some sharpie mug DIY-ers may advise you to spray the mug with acrylic sealing spray to make sure the sharpie etchings doesn't rub off. I personally didn't want to do that because the spray can be toxic. However, if you decide to go that route, be sure to avoid spraying near the top and on the inside of the mug. You can cover those areas with masking tape to protect them before you spray.