I found in the internet lots of different kinds of bizarre collections, but the most bizarre for me is Graham Barker's collection, this man started collecting his belly button fluffs, one night he was doing nothing and suddenly he noticed something inside his belly buttom and found a fluff. Since then he decided to check his belly buttom every night and collect all the fluffs to check how much fluffs can produce.
The other one is about collectiong empty toothpaste tubes and the other one is burned food...