I like steampunk. I feel I miss out on a lot as I have the engineering knowledge of a small Rhodesian fieldmouse and lots of the literature is heavy on the technical details, but the mixture of faux-Victorian grandeur and advanced macro-machinery makes for entertaining stories and great constructions.
I also like superheroes. This goes without saying. There’s been some crossover, but nothing quite so cool as the steampunk Justice League:
A guy modded his action figures after reading the Batman graphic novel “Gotham by Gaslight”, in which a 1880s Batman faces Jack the Ripper. Gotta get that book. He deserves a lot of kudos for finding a Superman action figure that a) doesn’t completely suck and b) making it look good. There are close-ups of each figure on his site.