WANTED... Chunky knitting wool

I'm crocheting hats and scarves for homeless veterans and am looking for chunky wool please. I'm on a pension and can't afford the silly prices in the shops, even the pound shop is £4 for 200gm.
So if anyone can help please I would be eternally grateful.
Doesn't matter what colour so long as it is chunky or extra chunky please. The extra chunky can be used for blankets.

Even chunky cardigans etc will be gratefully received as I can unwind and use again.
Many, many thanks in advance.
Freda Read more