Brooklyn-based Scott Campbell makes currency art like this by ordering bills directly from the US Mint and laser-etching them into "sculptures." In terms of "art as commentary," there's a lot to talk about given the morbid themes of Campbell's work and the medium he creates in. Check for more in the via link below!
Russian artist Dimitri Tsykalov eschews traditional sculpting tools and makes these fruit and vegetable skulls using axes, saws, and electrical drills - making them even creepier than they already are. Check the via link for more, and check out plenty more cool food sculptures and lols over here!