Thanks to Cygnett, I can choose a different case for each event. The carbon fiber look of their UrbanShield slim case matches my motorcycle helmet's carbon fiber styling! Note that it's just carbon fibre look, not actual carbon fibre, despite the web site's verbiage.
They have a bright 'Bulldozer Orange' rubberized case that provides nice protection and helps you find your phone.
Lately, the Cygnett Khaki (really olive green and black) two piece rugged case is where my iPhone 5 spends most of its time. It combines hard plastic inner shell with a silicone exterior.
I couldn't possibly list all of the choices, so check out http://us.cygnett.com/iphone.html for more. If you can't find a case you like, you're just not trying!