Motrax (English Co., I think) makes good quality ripoffs of just about everyone's bar end mirrors. I have the CRG lookalikes, 3" round, and they are great. But they make Rizoma style as well as Oberon style.
Rizoma, Oberon and CRG are all top of the line, excellent quality sets. Ka-CHING!!! if the bike tips over, though!
Oh, looking at your post again... a CR... he will need turn signal indicators to replace the ones on the back of his stock mirrors if you get him bar ends.
And so the snowball begins!