BikeMaster Folding Bar End Mirrors
I recommend these - I've had them several times.
They have withstood collisions with car mirrors and even a low side... Finally did them in when I high sided. Bought them again... They are considerably cheaper ($30-40 less) than CRGs and look the same (minus the CRG brand name which I don't care for). And you don't have to buy a separate $30 dollar adapter. They are also very adjustable.
If you are all about the bling take a look at Joker Machine or Rizoma...
2006 999s mono
2012 848 EVO
2000 M750 (sold)