Luke Plunkett over at Kotaku received an interesting email that revealed prisoners use N64 rumble packs to ink tattoos into each other.

It is actually pretty easy. There are no workshops in maximum security. They do it in their rooms with a battery(power) taped to a tube(could be a pen or a tightly wound piece of paper). The motor from the rumble pack is taken out and attached to the top of the tube. A needle or pin is run down the middle of the tube. when “on” the needle will move up and down like a sewing machine. The needle is then dipped in “ink.” This is made a number of ways the easiest is to use ball point pen ink, but they could use other items to get different colors or looks.

As I peer over my shoulder and stare at my N64 rumble pack on my bottom shelf, chest hair starts to appear. Time to be a man!