There is definitely something wrong with this guy's backpack or something completely right considering there is a skull in the mix. This illustration was created by Kyle Cobban,a  regular contributor on apparel sites like Threadless and Design by Humans. He is an art teacher, illustrator

This dripping chocolate skull t-shirt design called Bitter Teeth (dark chocolate teeth?) designed by Ibrahim Dilek on Threadless inspired Chloe Bird so much that she decided to make an actual Bitter Teeth chocolate cake skull! The front of the skull and jaw were created with