Gamer Ryou-chan, her father, and her friend gutted a toaster and modded a PlayStation2 inside. From an email posted to Destructoid:
I am a proud nerd and gamer, and I like to use my artistic vision in unexpected ways. I can't take all the credit for the PSToast though. It was really a team effort by my friend and I. Also, my father helped us by driving us around town in search of a toaster and doing some of the things that required the use of machinery (he owns a machine shop).
The idea was a product of extreme boredom. My friend and I were sitting around at my house when I suddenly wanted to do a case mod for my ps2. The first thing that poppped into my head was that a kitchen appliance would make an awesome case, and after some brainstorming, it was decided that a toaster would be perfect. Since I had bought the ps2 used, it never really worked perfectly, and the plastic bit on the front of the disk tray was missing. So I thought that it wouldn't really be a great loss if we ended up breaking it in the process.