These covers are sized at 47mm and 37.5mm I.D. to fit the large and small ends, respectively, of a set of vintage Bushnell binoculars where I had found the original plastic ones to have cracked due to age.
The company logo is inscribed on the outside using their vintage logo which I painstakingly recreated from a photo since I could find no trace of it on the Internet.
Scale as needed to fit other sizes. I recommend printing with TPU rubber so it can stretch slightly for a snug fit.
The “Bushnell” logo is a registered trademark of Vista™ Outdoor.
The author marked this model as their own original creation.