Iris lens for Steampunk Goggles (fake Iris)

I added 2 fake Iris lenses (original + mirrored version) so you can choose your design or use 2 opposite. Sorry for the heavy files.
Those parts are designed to fit on the very common and inexpensive steampunk googles.https://www.amazon.com/FTXJ-Steampunk-Goggles-Welding-Glasses/dp/B01FRSH6VA/ref=pd_lpo_vtph_236_lp_img_4/143-1600265-4206641?_encoding=UTF8&psc=1&refRID=66Z9XZG5DDKWVR7WDQ72