I know these contraptions of mine are realy impractical, but I cant help it, they are too much fun to draw. This is the Ironfist, built by orcs, it runs on coal, steam, potatoe peels, pedal power,....whatever. It is a seige device, using its massive iron mallet to annihalate enemy defences. That is if its pilot and crew can ever get it to work. Also accompanied by an orcish sharpshooter.