Manic Monday Bonus--From here To Eternium!!

An ad in Western Crime Busters #1 (1950):

OK, a lucky glowing skull ring is pretty cool.

But what's it made of?

Eternium? They were mining in World Of Warcraft that long ago? Or perhaps a close encounter with the planet from Futurama? The strongest metal from Eternia in He-Man?!?! The Israeli death/thrash metal band?!?! What is this "eternium"???

"Harder than steel, brilliant as silver, luxurious as platinum!" And not just eternium-plated--nope, this is SOLID eternium!!

Oh, yeah, they had a pirate ring made of eternium, too:

This fine blog came up with a real live sample of the lucky skull ring:

Man, the Phantom wishes he had a skull ring this cool...