This is a story about a man who picked up a used grenade from an Army Surplus store, and on his way home he eyed the Micro-SD reader on his keychain.

A couple neuronal flashes later he had decided that a new 32GB Micro-SD card worthy of his grenade would be too expensive, so he would use a thumb drive he already owned instead.

After a little fiddling, a paint job and some elusive gadgeteering, our man had himself the first ever true metal USB grenade, and the only one in existence liable to turn him into John McLane.

The wrong guy in the wrong place at the wrong time – turn up in public with this thing and you’ll get arrested every time.