From Discworld MUD Wiki
Skins and pelts can be gotten from most corpses.
Cutting & transformation
You need to be holding a knife to
get the skin from the corpse.
You can use a tanning kit to
divide the skin. This can help if it's too heavy or too big.
Skins and pelts can be tanned and dyed.
- Eel skin
- Toad skin: from the Crow-legged cottage or from the corpse of npc frogs/toads which can be found in the forests around Pekan Ford and around the wolf trail (beware wolves near or on the trail!)
- Human skin: required for the spell Von Hasselhoff's Skin Condition.