PlayStations are great. You can play games on them, and if you've got a PS3 you can also watch Blu-rays and surf the internet. If you happened to be in a UK jail, you could even get inked by one.
A prisoner in the Brook House Immigration Removal Centre near Gatwick (south-ish of London) was caught tattooing fellow crims with a hacked PS1; a pen with sharpened tip attached to the console along with a motor.
It's not yet known if the tattooist/crim was offering a full range of tattoos, or just Lara Croft and Crash Bandicoot designs. If any prisoners were after a Mario or Link tatt, they would've had to hunt down a crim with an N64 RumblePak. [The Sun via Kotaku]