Artfelt makes flannel characters (http://www.artfelt.net/warehouse/front.htm)
Book Props (http://www.bookprops.com)
Little Folk Visuals (http://www.littlefolkvisuals.com/)
Miss Lee’s Etsy Shop (http://www.etsy.com/shop/misslee?section_id=5564369)
Makes flannel sets and will custom make to fit specific needs. The Felt Source (http://www.thefeltsource.com/)