I changed mine to black Napoleon bar ends. I had to mod the insertion bushing of the mirrors by cutting it in half and then using a nylon bushing
www.rivbike.com
(These are also available at any bicycle shop) and an appropriate length 5mm bolt to screw into existing welded-in bar inserts. Don't forget a washer and some locktite.
I have since started running speed triple bars on the scram, and had to re-jigger the mirrors, since S3 bars don't have the welded insert.
Can;t recommend the Napoleons high enough, except there is a vibration issue. I dunno how to solve it yet, but it doesn't bother me. Cars just look squigly......
Cheers,
Rob