I got a wool pocket from Genesa Forge the other week - brand new - for $12.00!!!! Awesome. It was in the specials part, not sure if there are any left, but worth a shot?

Either that or you could contact a wahm asking how much to make them? Most will do them pretty cheap I reckon. I'm getting a friend to whip up 4 for me (Oh how gorgeous) but she's not doing it any more, so I can't suggest her... so try GF!