Actually the operational part is fashioned from a Mithril-Adamantine alloy. The balls consist of two fuel cores that run on a hybrid antimatter reactor of Elerium and AntiTiberium, which by necessity is contained within an alternate dimension for safety's sake, the whole 'package' being encased in a container fashioned from the bark of Yggdrasil itself. That has been anodized. With more Mithril.