Marzipan entrails Cory Doctorow 8:21 am Tue, Feb 1, 2011 Food artist Helga Petrau-Heinzel makes realistic human entrails out of marzipan. Grossalicious!Helga Petrau-Heinzel (via Street Anatomy) HOWTO make an ultra-gross melting-head cake – Boing BoingOozing anatomically correct cake-hearts for Valentine's Day …