"You wash the skin, just like you would a shirt. I normally use Daz, I think."
Grabbed a nice little article off the Guardian website talking to taxidermist Kim McDonald. He gives the basic day to day activities and views of a taxidermist and comes off as a very nice and funny chap. Check 'im: http://www.guardian.co.uk/money/2008/may/24/workandcareers