Here is a great list of real funny mottos:
You go for it. All the stops are out. Caution is to the wind, and you’re battling with everything you have. That’s the real fun of the game. – Dan Dierdorf
If you cannot work with love but only with distaste, it is better that you should leave your work. – Kahlil Gibran
People must not do things for fun. We are not here for fun. There is no reference to fun in any act of Parliament. – A. P. Herbert
Fun is a good thing but only when it spoils nothing better. – George Santayana
People rarely succeed unless they have fun in what they are doing. – Dale Carnegie
She concedes that she’s the one she pleases. – Kim Carnes
Innocent amusements are such as excite moderately, and such as produce a cheerful frame of mind, not boisterous mirth; such as refresh, instead of exhausting, the system; such as recur frequently, rather than continue long; such as send us back to our daily duties invigorated in body and spirit; such as we can partake of in the presence and society of respectable friends; such as consist with and are favorable to a grateful piety; such as are chastened by self-respect, and are accompanied with the consciousness that life has a higher end than to be amused. – William Ellery Channing
Now those are some funny mottos.