Almost every one has their own hobbies. Collecting stamps - I used to do that when I was in primary school. Collecting marbles - I used to do that when I was in kindergarten as I used to play with marbles with neighbours. Collecting animals - my house used to look like a zoo with fish, birds, doggies and cat. Yes, a cat and a dog and birds and fish and tortoise and hamsters living under one roof. Then, I collect books. Right until now, I still do that.
Collecting rings - my latest craze. Whatever blinks and shines, except for yellow gold. No fake items, though. One more for the index finger and I'm done unless I change my mind about filling up my right hand fingers with rings, too.