The Smith "Tough Tony" cutting / demolition torch beat you to it. There was one combination torch put out by Eutectic that was a Brazilian import that had a hammer head on the back of the cutting torch head, but it kept breaking the coupling nut at the mixer barrel body, so they ceased making it.
Sell it in a kit form, torch/hammerhead screwdriver combo an you could include free of charge a newspaper page with a cutout and a 2x4 #5 shade taped to the inside of the paper.