I think luck is the only option I have left. I have spent a dozen hours on the internet following leads, calling leather supply houses and sending messages to members of this forum and others with no results. Hard to believe that an item that seems so common would be so unavailable. I could understand if I lived in timbuktu or someplace but geez, this is supposed to be the land of plenty!
For the time being, I guess I am going to have to glue two eyelets in, one from each side. This is total cheese and I am ashamed to do it but I don't see where I have a choice. I have a leather sheath to make that requires 7 eyelets be installed around it's perimeter, apparently so it can be lashed to a pack of some sort. The leather is 8 oz with an 8 oz welt. This leaves me with three layers of 8 oz leather to go through on one side, two layers on the other. I actually tried to make some long shaft eyelets with some thin tubing but it was a nightmare and the end result was ugly.
At any rate, if anybody out there reads this and knows where some of these unicorn eyelets are, a heads up would be greatly appreciated!