Stephane Halleux is a French sculpture artist whose work feels like Jules Verne as realized by Tim Burton; the sculptures all share cartoonish steampunk vibe that's really appealing. Sadly, the site is 100% Flash, so no linking to specific favorites, but at the very least the navigation remains fairly straightforward.
Steampunk Star Wars. An ongoing series of drawings by Eric Poulton of Star Wars characters redone in the style of Jules Verne era sci-fi. Sadly only three have been done, so far, but hopefully more to come. Via
The Mysterious Geographical Explorations of Jasper Morello is a series of four gorgeous steampunk victorian silhouette animated shorts from Australia. The first link goes to a trailer for the films, all four full animations are available on a DVD via the official site (which is loads of fun to explore play around on), and the (Academy Award Nominated) first of the four shorts has been released on YouTube.
Kirk Rademaker makes sand sculptures that look like whimsical, steampunkesque machines (among other things).