The red eggs on this birthday are similar to those on the wedding day. In fact, the easiest way is to wash and cook them, and then soak them in water with red paper. After the water turns red, put it in for three minutes, pick it up and dry it with a hair dryer. Another way is to apply it directly with a red oily marker and dry it yourself, so the water won't rub off. Hehe (markers are very cheap, and I did the same when my relatives got married. Very convenient. I hope I can help you.