Part 2 of our "Celebrity Hobbies" episodes.

Everyone has their own hobbies, some you might expect such as drawing or tie collecting. But what about skull collecting, buying vintage dolls, writing stories about typewriters, or even people watching?   

Nicholas Cage, Katy Perry, Tom Hanks, Leonardo DiCaprio, David Arquette, and Simon Cowell, all have some pretty unusual hobbies.   

Let us know which one you think is the most unusual!