Weapons so cool and badass they were virtually characters.

The Sandman’s Gun in Logan’s Run (the book, not the movie).

The Soft Weapon in Larry Niven’s short story of that name.

The Hanzo sword in Kill Bill.

Gort

Roland’s “sandalwood-grips” pistols from Stephen King’s The Dark Tower series.

Anyone remember a chainsaw and leatherface in The Texas Chainsaw Massacre?

That chainsaw had a huge bar and was very bad ass.

In that vein, I give you…this.

And in another…this!

Don’t act like you don’t know which ship I’m talkin’ about here.

How about some real (well, more real than most) ones?

Curtana and Durendal. A few names from history for you Marathon and Halo fans.

Whoa, as if the Deathstar wasn’t bad enough, now they’re enchanting it? And I thought my planet was safe, with its DR/magic.

The Wave Motion Gun.

Is that more bad or less bad than the chainsaw in Evil Dead II?

If we’re talking Tolkien, Gurthang is much more of a character. Hell, it talks.

If Doc Ock’s tentacles could be called “weapons” then…those. Each one seeemed to have its own personality.

Along those same lines, those scanning spiders from Minority Report.

BFG 9000 from the Doom video games.
(and the movie too I guess…)

Damn! You beat me to it! I was disappointed it wasn’t used much in the movie when I saw it as kid. (in the theater, yes I’m old) and dismayed that it was destroyed by the end.

Vera, from Firefly.

The Doomsday Machine.

The Green Destiny sword in Crouching Tiger, Hidden Dragon.

I thought you meant the Doomsday Machine from Dr. Strangelove. (Never appears on-screen, but, wow! What a weapon!)

The Gyrojet – real-life experimental rocket-gun, proved impractical, but it appeared in the Bond film You Only Live Twice.

Terminus Est, the blunt-tipped executioner’s sword from The Book of the New Sun.