T-shirt printing, leather craft, 3d printing long-tail plastic parts for things where spare parts are no longer available, small-scale electronics manufacturing

T-shirt printing, leather craft, 3d printing long-tail plastic parts for things where spare parts are no longer available, small-scale electronics manufacturing, hydroponic production of fresh ingredients for local restaurants, embroidery, concrete countertop/sink production, glass work for smoking, classic car restoration, kit car production, hobby steam engine production, tiny wood shop, CNC production for sale on Etsy, jewelry crafting. Those are ones I can think of off the top of my head.