Like I did on Fwop [link] I put a thin layer of liquid sculpey on wax paper and baked it the alotted time,let it cool and then took a ink pen apart,one with a good aluminum barrel and used it like a cookie cutter and cut out holes for the cans. I was thinking the similar process could be apply to goggles or glasses,but use the cutouts for the lenses.Another idea might be to make the frames minis the ear peices,or legs ( I think thats what they call them) and lay it on wax paper and fill lens area with liquid sculpey and then bake. Just a thought,maybe this will help.
I never did that before ,but have you noticed a lot of art now has cute animal caps?! Bunnies ,kitties and bears oh my! I was almost out of mohair and that stuff if its nice is like 20 bucks an oz! So, this way I only needed a tiny bit of hair.