I have Drake's mirrors on both sides and as you all know, the right side looks good but doesn't look well! I had hinge pins mirrors at one time but didn't care for the look so I started looking for an alternative.
This picture is the first I tried but later changes to a 4". The key is getting one like I've shown where you can unscrew the threaded stud and replace it with a trimmed Allen head bolt. The position is great and above passenger arms, etc.
I had a piece of Al that I drilled and countersunk for the Allen head, then shaped and polished.
I thoroughly cleaned the new part and the stainless trim and adhered it with 3M double backed tape. It has been solid for three years.