A little expensive for a joke but I am not entirely sure how else you'd use these. Unless, of course, you are that formal and find yourself in need of something stylish for bed. Or perhaps your on your way to the Playboy Mansion and want to make a good impression. Or perhaps you really do have that job where you could go to work in pajamas, but only if they are semi-formal. Shiny finery for happy naps? Hey, the tie is even a clip on so you won't choke on it in your sleep. $89.95 at World Famous Suit Pajamas.