Yes, my deep dark secret (don't tell anyone) is ...
.... I keep a huge variety of materials on hand, metals (aluminum, brass, steel, titanium), all-thread, plastics (acrylics, cast and extruded, sheet, teflon, delron, and others), glass, fabric, rope, wire, electrical supplies, plastic and rubber tubing, straps, leather, foam rubber, packing supplies, art supplies, mat board, and poster board, electrical supplies, electronic components, and more - for projects I have in mind but many just in case I want something NOW, while I am working. This does take a lot of storage space especially for plywood, construction lumber, planks and slabs (like mahogany, olive, figured maple, walnut, bubinga, cocobolo) and the thousands of wood blanks on shelves ready to pick for woodturning. I also keep nearly every type of fastener (bolts, screws, etc), from tiny metric to huge imperial. I recently drilled and tapped a brass rod for six tiny 3mm set screws to make a special tool to finish a project - it's SO nice to have everything on hand and not have to shop, order, and wait - when I want it I want it now. (another secret - a bit of impatience)
I've used small pieces of shear fabric for fine screens, silk screening, and reinforcements. A piece of very stiff and strong but fine cloth screen came in handy just a few weeks ago to epoxy into place to reinforce something that had cracked. I also have some sheer white cloth with a very tight weave on a PVC pipe frame to make a 2x2x2 "photo cube" for photographing SMALL things - the cloth allows control of the light diffusion to soften shadows as desired.
But as for fabric in general, I may be the only guy on our lane in his mid 70's with a sewing machine. Years ago I realized I had the ability to work with almost anything material except cloth so bought a sewing machine. I chose an embroidery machine just in case and have made lots of things for grand and other kids. Why, do you need me to sew up a tutu for you with posies embroidered around the hem? Are those popular in France?
Or if your interests are in other things I have a small machine shop and am currently designing and building a foot-powered accordion test bellows.
The embroidery machine has been used by a bunch of kids over the years. (I know a lot of kids through my SS kindergarten class, some who have now graduated from college - one is working on her PHD in animal pathology!) This little girl wanted to make a birthday present for a friend. It was a new experience for her and she was so proud of making it!
I've also had some previous kindergartners come for lessons in wood turning, welding, to help with the baby peacocks, and to shovel llama manure. Good clean fun!
JKJ