Well, apparently the alleged “crystal skulls of doom”1 are no more than fakes.
Which is somewhat unfortunate, because it’s (they’re) actually kind of neat. (And which begs the question: are there genuine skulls of doom out there?)
(via Guardian Unlimited news blog: “The ancient and wholly rubbish prophecy of the crystal skull”)
Note:
1 See The Unexplained, by Karl P.N. Shuker, and probably 20 or 30 other books as well.