If nothing else, you can cut a piece of bicycle inner tube, stretch it over the eyepiece and then fold it over onto itself. The folded edge makes a nice soft point of contact and honestly it doesn't look all that bad. I did this for my current set that had eyepieces that were just too large in diameter for me, and it's worked out great. Since the Zen Ray's have even larger eyecups, I would think this may actually be an improvement for those.