[quote=@SilverWolfAngel]
[i]large, silvery, [url=http://i134.photobucket.com/albums/q83/blipper2/21b2.jpg]three-legged machine.[/url][/i]

Shit, hunter …Run!!!!

Was literally my first thought upon seeing that picture.

From Earthfall by Mark Walden, Hunters look kinda like that but instead of legs they are tentacles, and the things drift around making a sort of humming noise. Alien technology. If they sting you, you die, slowly and painfully.
[/quote]

It's actually the tripod from War of the Worlds X3