Before we even get started, be warned: this project is time-consuming, nerve-wracking, and ultimately unnecessary… but boy is it cool! Firstly, it should be noted that this is NOT an emulator. This is a fully-functioning Nintendo Wii circuit board that was cut down and modified to fit into a mint tin.
A modder by the name of Shank took it upon himself to make the smallest working Wii. It was over a year in the making, and by his own admission it was one of the more frustrating projects he’d ever worked on. He even named it the Kill Mii. Luckily, he shared the entire process through a series of forum posts on BitBuilt so you can put yourself through the same torture!
As mentioned, this project is extremely intensive and is really only for hardcore modders to attempt for themselves, but anyone with the DIY spirit can read and appreciate Shank’s process. Another warning- the forum thread is very long and Shank’s posts are spread out among others’ comments, but it is definitely worth checking out.