Infinite coaster
thingiverse
This is made with a mirror from Dollar tree + a 5x7 acrylic sheet (1mm thick) + one way mirror film. Internally, 40 WS2812b LEDs (from a 96 LED/m strip) are attached and driven by WLED. Each edge has 10 LEDs and soldered with the adjacent ones (via a short 3pin wire, about 2-3cm long). But it might be ok to get 11 LEDs without solder but the corner would look a little bit crowded. The 1mm acrylic sheet might not be ideal. Most likely a 2mm or 3mm sheet would work much better. But that's what I have for now. Live demo: https://youtube.com/shorts/bSK_sRjurBQ
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