I put bar end mirrors on one m Bandits-less buzz and I can see behind me. I like this style better than the little round ones previously posted. I think Dennis Kirk and
Chaparral still carry them as well as most Euro collector bike shops.
Skyking makes some cool,spendy bar ends out of machined aluminum for the Speed Triple which would also work.
This pair of mirrors traveled from a Ducati to my Norton to my /2 BMW to my Speed Triple before ending up on the yellow Bandit...
(sorry I don't have a better picture handy)