@morgan@merveilles.town a year ago I worked on a prototype for the tamafoxi, a handheld tamagotchi-style game thing, but with cool hardware
did a write-up back then too: https://plume.pixie.town/~/Thingies/tamafoxi/

I'm now designing a proper PCB setup which will allow me to do small-scale assemblies and possibly even sell these to people, and also adding more cool features than the original (leds, vibration motor, accelerometer)