Narrow light switch frame

Since we bought our house this frame has been missing and I've never seen a replacement in the shops. So when my 3D printer arrived this was first job on the list!

It's designed to interference fit snug with the switch, especially the nub clip-ins over the screws

For improvement: If anything it's a little bit too tight, I think the nubs are slightly out of best position. Also, not super keen on the colour! I've had a suggestion of wood filament, which is probably best in my case as I doubt 'old ivory yellow' is available.