star shaped keychain with a round display eye that reacts to shaking, cold, noise and gets sleepy when left alone. runs on an esp32-c3 with an accelerometer, temp sensor and mic, and every unit generates its own eye colours and pupil style from a seed so no two come out the same. the shell took a few tries to get right, first a rounded blob then long thin spikes, before landing on a fat middle with short points. caught a display pocket that was 4mm too small (every listing quotes the glass size, not the board) and the back engraving cutting into the electronics cavity, then added checks in the cad so those can’t sneak back in. stls are exported and ready.