Nes Cart

It looks like a NES cart, but that really couldnt be further from the truth!, some clever modder with too much time on their hands has taken the guts out of a Nintendo Entertainment System, and cleverly put the innards inside an actual NES cartridge.
The results speak for themselves really, amazing what can be achieved when you try!!

The creators blog (you may want to run through a translator unless you can read French)