Not sure why I hadn't already done this, but Pico3D in your browser:
cupboard.daftgames.net/Pico3…
(For some reason the menu text is really flickery for me...)
Hacked this together when I wasn't doing furniture things...
Just need to make the rendering match the logic. 🤔
(... and make models for things... and rework all the menus... and make it generally less hacky)