Chunky Housing for Watchy
Modded my Watchy with a 1000mah 803040 battery so here's a housing to... well, house that. Meant for v2.0 clones that come with USB-C, can't guarantee it'll fit on official models. Also this housing is NOT water-resistant! I might look into improving that, but for now that's how it is.
The strap lets you quick-release the Watchy for charging/flashing and keep the strap on my wrist. It's a bit finicky (specially when putting the Watchy back in), but works well enough. Of course other straps will fit if you don't wanna use mine.
You will need 4 M2 screws. 6mm is the recommended length if you intend to use a big battery like me. Otherwise it's fine if they're a bit longer. Either way the battery's meant to be held with a bit of double-sided tape, nothing fancy.
The housing pieces print well enough with PLA, for the buttons I used TPU but PLA should work ok. The strap parts are of course meant to be printed in TPU. Main housing parts need supports (the top part needs a brim), the strap and buttons print fine on their own.