A question for the experts here; and I apologise if this is a stupid question!

For those of us who are just starting to lose our hair, say with a norwood 3 hairline with thick hair at the back and sides, would it be possible to get a small partial piece actually manufacured using our own hair? Obviously this would only be practical if there was a small area to cover - slight recession at the front or perhaps some thinning at the crown.

If someone were to grow their hair at the back/sides a bit longer, could someone cut this and then use it to make a partial piece?

Or is that a crazy idea...