A few hours before a cat themed party I decided to try to make some infinity mirror cat ears based on @gellacraft’s tutorial on Hackster, (InfiniKitty Ears - Hackster.io) because I happened to have one-directional acrylic mirror, two way acrylic mirror, neopixels and a lasercutter kicking around, and that’s all it really took! Hadn’t tried an infinity mirror effect before but it was really simple because of the acrylic and glowforge and hugely satisfying. Deffo will be using this skillset again.
You probably could with some arithmetic and a copper mirror or two but the Glowforge lid is not proofgrade and thus would not be warranted when it exploded.