You can photo expose* stencils easily at home, but you'd need to DIY a UV rig. It's super easy though, and pretty standard for screenprinters who don't have access or cash for communal facilities. I have a friend who uses the sun, but that's a bit trickier and you'd probably need to have had some experience before so you didn't waste a tonne of time faffing about.
I've helped heaps of people set up their own, and I've been meaning to make an instruction manual specific to pedals for ages. Maybe I should finally get on it
*For those who don't know, photo exposure let's you put an image of very fine detail onto a screen - so fine lines, small font text, photos that have been turned into a halftone first, etc... You can get digital quality prints with the right gear, but for pedals you wouldn't need anything very fancy, just a screen with a good mesh count and a UV unit