Amazing 3D printed skull iphone cases by Hugo Arcier:

“I created these cases inspired by one of my artistic project called “Degeneration” (2007), based on a face reduction algorithm. They mix harmoniously a demanding and at the same time cool design.
You can customize them and add a sentence of your choice or directly order the case as is.
Print your own for iphone 5 or for iphone 4.”

You can turn your iPhone in a potential weapon with the Knuckle Case…