Golden rocks obtained by killing monsters that make use of Melee are part of the Statue of Rhiannon. Two are required each to complete the statue each time that it is built. Golden rocks may be stored inside a statue collection bag.
Killing any monster that uses melee attacks and drops summoning charms. Troll Brutes in the Abandoned Burthorpe mine and Cows in Burthorpe are both recommended. Cows only have 25 life points and respawn extremely quickly.