OK, a (more) serious one:
I've been toying with the concept of a villain that spontaneously germinates from one of those superheroic vaults/trophy rooms where they typically keep equipment and artifacts liberated from their past opponents (occasionally this concept works its way into fantasy rpgs). The lingering, concentrated evil psychic imprints combined with alien tech gradually create a gestalt entity that breaks out and seeks revenge. I picture a crystal skull atop a mechanical torso, cybernetic arms, adorned with a cloak, medallion, ancient staff, perhaps a crown of Krim? Or any combination that looks good, really.
Tentative names: Amalgaman or the Residuum.