It's special effects on a budget and, if you like gaping holes through your stomach, it looks fantastic.

Evan Booth shows us all how it is done.   A portable DVD player attached to his stomach actually displays a live video image from a camera mounted on his back - so it shows what's behind him, giving the illusion of a gaping hole through his chest.

hole through body costume illusion

Halloween costume hole through body

H/T Curious Cat