I saw a guy out on the trail a few weeks back who seemed to be wearing a skateboard helmet instead of a bike helmet.  However, it turns it out it was a super stylish bike helmet by Jorg & Olif.

I was so intrigued by the Jorg & Olif helmet that I was motivated to do a little helmet hunting around the internet, and found a few more inspired interpretations of the standard bike helmet:

Yakkay makes bicycle helmets that can be accessorized with funky covers that look like real hats.

I first saw these Sawako Furano helmets on Treehugger.  These beautiful designs will definitely make an impression.

Unfortunately, Roar Helmets are just for kids!  Too bad, they are really cool!

Nutcase Helmets are designed to be used with multiple sports, so they are great for people who bike and skate or snowboard.