There's this guy on Thingiverse named LoboCNC ( https://www.thingiverse.com/LoboCNC/about ) and he made these awesome goggles. The main parts are printed in one piece! I think this is an amazing design and I could not resist trying it for myself. After a few tries, adding some tweaks to the slicer's settings, I finally managed to get a working pair. The twisting Iris has a very strange mesmerizing effect. I could fiddle with these things for hours.
This is also my first time airbrushing. It's not an easy thing to do but it's so much fun. I didn't go through the trouble of sanding or adding an acetone vapour finish ( I admit to having never even tried it ) but the goggles still look quite lovely from a small distance!