CoverBrowser has a great collection of comic book covers for you to browse online.
Jim Stuht has a nice gallery of trains, planes and automobiles (and robots!) that he has constructed from various toys and models. It a fine source of inspiration for your VSF games.
Eye Candy doesn’t get any better than this. Take a look at Witchhuner.net’s Call of Cthulhu gallery.
Here’s a fine gallery of Gothic Horror figures from Witchhunter.net