I don't know how to write a cup for my father.
If you buy a water cup for your father and engrave it, I think you can engrave your father's photo, or your family's photo, or your father's name, or his nickname, or write a sentence, such as pig's father is happy all his life, and then write your name, because this cup is a beautiful meaning, that is, the meaning of the cup to life. This is for a cup. Then under normal circumstances, many people will send cups. I think it is better and more memorable to carve a photo of my family or a handsome photo of my father on the cup. As long as you pick up the cup and drink water, you will feel that you gave it to her, and your heart will be particularly warm.