I like both Monty Python based t-shirts and also rock bands. My Monty collection has Black Knight Bridge Security Services (None shall pass), Norwegian Blue Pale Ale (Pining for the fjords) and Rogers Shrubbery Service (Shrubberies since 932)
Musically I have a couple Pink Floyd and a AC/DC t-shirts.
I wear this one on Father's Day and many outings with the grandkids, got it 9 years ago when grandson #1 came along. I get lots of compliments and smiles on it (either it's the shirt or my fly is open).
Had one that said "Jesus Loves You" in large letters and in small letters below it read, "Everyone Else Thinks You're an *** ****". My loving wife made that one disappear after I wore it to church under my dress shirt. Still wonder why...