There are some very clever people out there on the Internet and one project which recently caught my eye was this...a homemade, handheld, fully working Nintendo 64!
Just look at it! It's absolutely amazing!
If you follow the image above you can see more photos that detail the complete electronic manufacture of this amazing piece of home made gaming heaven. When producing something like this it shows amazing levels of technological skill to be able to disassemble the existing Nintendo 64, add a screen, take apart the controller and position them in usable places, make a case and pack all the PCB parts into it and for it to work.
Take a look at the complete process to see how it was done.