1. I get doll hair at
http://www.weirdolls.com (super soft and shiny...I order enough to get the 10% bulk discount if I can) or at a local foo-foo yarn shop.
2. MY favorite roving in from
http://www.mielkesfarm.com Ebay is also a good place.
3. I get wool felt at
http://www.novanatural.com ,
http://www.achildsdream.com , or a mercurius co-op if I can catch one happens to be going on when I have spending money. Wool blend felt at JoAnn and
http://www.colonialcrafts.com (same brand but colonial crafts has all the colors)
http://www.thesilverpenny.com carries wool blend felt with a slightly higher amt of wool.
4. Honestly I prefer the wool/rayon blend felt that JoAnn carries. Most all the wool felt I've used is really tough to get a needle through. And my experience with the wool blend is that is holds up wonderfully over time. My JoAnn has different ratios of wool:rayon for different colors...white is higher than 80/20 sometimes...they aren't really consistent.