When you breed these types of ferrets the Waardenburg gene can lead to Waardenburg syndrome. It is really benign in that it is typified by having white markings on the head region, wide set eyes, and sometimes deafness. The Waardenburg gene has expressed itself visibly down to every detail. This is Ping. I think he couldn't decide what to do.
Typical blazes have a stripe down the middle of their head continuing down their back.
White knees are common. It's not uncommon for them to have a white spot on or underneath their tails. They may or may not have white speckled bellies, and may or may not have a white bib. Most of the time their noses are pink. Their eyes vary from a burgandy to ruby color.