They print superbly. I even did a lot of pause action, mixing and matching the filament colors. i even used some glow in the dark, just cause I can, lol. I picked up the eyes from Amazon, and sorry in advance, but I had a bunch of craft eyes to choose from but I didn't have their actual measurements. but if you're a real maker then I'll bet that you have a ton of these eyes laying around to be used. good luck.