A bit more of a "morbid happiness" would be The Siren by Aesthetic Perfection. "I guess there's always something killing me so it might as well be you." It's not supposed to be a happy song but it's just one of those funny sarcastic songs.
A final one that always gets some laughs and smiles out of me is Fistful of !@#$ You by Faderhead.
Well worth watching the video. One of the better ones I've seen and has hilarious little cartoon cameos from other industrial/electro acts like Combichrist, And One, and Aesthetic Perfection. Him beating up video game drag queens was awesome as well.