They could be dropped by any monster in the area between Rimmington and the Sawmill and Lumbridge farm (north of the sheep herd in Lumbridge right around the pond). They could also be obtained in a special "around the world" drop party held by a Jagex Moderator. In addition, they could be obtained from the Falador Party Room. 10th anniversary candles were common drops from all monsters in the above area, such as highwaymen, Varrock guards, cows, Dark Wizards (level 7), men, women, goblins, unicorns, White Knights, imps, outlaws, and giant spiders.