I was looking at the stainless steel bar end caps for sale on New Speedmaster and they gave me an idea for my Speedy. I got two old Two Shilling coins from the 60's, from my coin collection, then drilled and countersunk them and they are a perfect fit for the bar ends. The reverse side of the coins look best. The design Cost me $0 and they are totally unique and fit the bike because they are British. Half Crowns are a little larger but will also fit. I would post a picture, but according to the forum instructions I would have to have a web page.
Mal