My inspiration came from looking at a calendar with buildings that were either crooked, or OOF, or both. I'm not sure I did much better (but I'm trying to learn).
Some of the photo's have very straight flag poles, but then the buildings look crooked 
Anyway ... here are a few of the ones I took the other day
#1
#2
#3
#4 This is one that is obvious with a straight pole and crooked building





