It is recommended to carve, which is more thoughtful and will never be erased. I have, but it's not difficult.
Tap lightly with a small steel chisel and hammer. It's best to try it with ordinary cups and saucers first, and master the method and strength. After engraving, you can dye it with an oily pen. At this time, the dyeing will be stronger. After dyeing, wipe the periphery with a cloth wadding dipped in alcohol.
If you have an art foundation, you can also carve simple and meaningful patterns, and the effect is absolutely first-class. What I carved was a painting.
If you don't have a small steel chisel, you can try the blade, cut it short and wrap it in cloth to avoid cutting your hand.
Wish you success!