Where are scraps of uggs sheepskin available?
If by "Ugg Sheepskin" you mean double face, footwear quality
sheepskin, then most sheepskin footwear manufacturers will have a
great deal of sheepskin offcuts and scraps. Celtic Sheepskin
(www.celtic-sheepskin.co.uk) in the UK can supply a large bag of
offcuts / scraps for the cost of the postage.