Action Figures: Steampunk Star Wars

By Sillof. Many more photos and some comments on the construction here. Also featured at CustomCon today.

Warhammer 40K: Brass Lion Steed for Victorian Era Space Marine

By Steerpike.

Custom Action Figure: Victorian Iron Man

This is the "primitive" version of the armor. See more photos of it, as well as Victorian Stark out of armor, and the more advanced version of the armor here and here.

Inspiration: Steampunk Goggles

Link.

Miniature: Steampunk Engineer and Clockwork Robot

More photos here. Homepage.