For example, the following slogan, who said so much? In the men's room: if you can't pee, you are short, and if you pee outside, you are soft.

Squatting is right, fat and water are not wasted.

The toilet is as beautiful as new, and the dripping water leaves no fragrance as green.

The hero bowed down at this sight, and the woman undressed at this sight.

If you don't know if these words are ok, just drop them, or you can search for the master of wall charts in Baidu. Their slogans are quite complete, and there are similar ones. I hope I can find what you need.