The unusual items that Mark Cuban, Oprah Winfrey, and 10 other successful people have in their offices

We all have our idiosyncrasies and bizarre routines that keep us sane. Certain objects and rituals add comfort to our lives - they make us feel at home.

A comfortable work space is an incredibly important factor when it comes to being productive.

Check out how these successful people have made their offices their own with a variety of unusual, yet meaningful, items.