We had a dog that was blind, but didn't have any fear about walking around. I created these goggles so that he could move around and not worry about scratching or poking his eyes on anything.
Printing should be fairly easy, and scaling will likely allow some adjustment for how it fits on the dog's face. Use craft foam or similar around the edge that meets with the dog, and use elastic or similar to strap under chin and behind head.
The profile for the bridge of the nose may need adjustment for different breeds. Happy to try to adjust if there's a need.
The author hasn't provided the model origin yet.