So what would have been a more amusing name than "unobtainium"?

[Chiliking20]

Newageium
Blasphemium (They cursed a lot in this movie)
convenientplotdevicium
suboptimalium
smurfium
smokesomemoredopium



I love blacklightium. That is brilliant

[Rattrap007]

AlGoreium
GlobalWarmingReversium

[djshire]

Adamantium 

[Atticus]

Letsjuststickawordandaddiumtotheend...ium

[Indomitus]

Letsjuststickawordandaddiumtotheend...ium

iumiumiumiumiumium

[Bob]

Dolemite

You rat soup-eating Mother F**ker.

[Plastic Self-Cleaning Duck]

"Thisshithere"

[Lemming Howard]

Call it Al-yu-mini-yum,  you know aluminum,  the way the British spell it.  Everybody's American so nobody will get the two confused.

[Indomitus]

Call it Al-yu-mini-yum,  you know aluminum,  the way the British spell it.  Everybody's American so nobody will get the two confused.

Yeah, in this movie, even the Australians were American.

[Thrifty]

Call it Al-yu-mini-yum,  you know aluminum,  the way the British spell it.  Everybody's American so nobody will get the two confused.

How in every visible way you shine
As if the stars in your wake align
Almost impossible to malign

But just below where you shine, you burn
Although I know it, I'll never learn.
Just goes to show that I can't discern.

Aluminum to me
Aluminium to some
You can shine like silver all you want, but you're just aluminum.





I'll take any excuse to belt out a Barenaked Ladies song.

[SJP]

Damoclesium (Hangin' over their heads, after all)
Yallseethisium
Salvationium (So named for appearing to be dense and multi-layered, but in the end revealed to be hollow and totally unbelievable)
Pennywisium (They all float down here, you know)
Anotherbughuntium

My vote still goes to Upsidaisium, since...well, let's face it, Cameron stole from everybody else, why NOT Rocky & Bullwinkle, too?

[Lemming Howard]

My vote still goes to Upsidaisium, since...well, let's face it, Cameron stole from everybody else, why NOT Rocky & Bullwinkle, too?

It totally helped with my suspension of disbelief when I was a kid.

[The Manatee]

Audienceinsultium? Maybe not funnier, but more honest. Especially with the Naive tribesmen.