Clean your mug with soapy water and dry well.
Shake your markers well before use.
Think about what you want to draw on your mug. If you are unsure, try drawing a design on paper first, then copy onto your mug with the markers.
Allow the markers to dry for a minimum of 24 hours.
Remember when baking your plate, DO NOT pre-heat the oven. The difference in temperature may cause your plate to crack. Instead, put your plate in a cold oven, then turn the oven on.
Once dry, place your mug in a cold household oven. Once the temperature has reached 160°C, bake your mug for 90 minutes to heat set your design.