Mithril dragon tail-bone

The mithril dragon tail-bone is an item on the Odd Old Man's wishlist after the Fur 'n' Seek quest, and is dropped by a mithril dragon. It shouldn't take more than 20 kills to get a bone drop. 8 other tail bones are needed from green dragons, blue dragons, black dragons, red dragons, bronze dragons, iron dragons, steel dragons, and Skeletal Wyverns to complete this miniquest.