Imitations, 4.99$ off ebay
Something like this:
Pair Motorcycle Bar End Mirror for Honda Yamaha KTM BMW | eBay
There's a piece you remove from the mirror so that you can keep your bar end weights. All it takes is a slightly longer bolt then the stock one at the end. 1.50$ at a hardware store.
yeah you'll see it's quite easy to take appart. The chrome part can be used if you don't want to keep the bar end weights but you can also remove that and the part holding it to mount it like I did.
Oh...and on top of offering the best visibility, they are 10$ shipped to your door.