For Red Rolling Barrel mount we need:
Decorative red sheet looted from Belliciose Orger
Beer tap looted from Roast Pork
For Green Rolling Barrel mount we need:
Decorative green sheet looted from Belliciose Orger
Beer tap looted from Roast Pork
For Blue Rolling Barrel mount we need:
Decorative blue sheet looted from Belliciose Orger
Beer tap looted from Roast Pork
If we collect both items we have to use Beer tap on the Super Cask