Bing has a news video about a woman who made a pair of sweaters for herself and her husband, out of spun dog fur. Her sweater is white (from their Samoyed) and her husband’s sweater is brown (from their Lapphund).
I’ve knit with dog fur spun from Newfoundlands. It behaves a lot like angora or mohair. It hasn’t any bounce or memory, so I recommend either blending it 50/50 with wool when spinning, or knitting it held together with a strand of wool yarn.