If L. Frank Baum's Oz had mechs, this is what they'd look like, opening up with twin gatling guns upon the Munchkins and splattering the Yellow Brick Road ruddy with blood. The robot (complete with miniature, bobble-headed pilot) is called the Bronze P-77 and it's a toy being created by resin toy artist Phuek for the upcoming Artifact Unmundane Custom Toy Art Show.
phuek's bronze p-77 [Toys R Evil] (via Brass Goggles)