Well I did the multicolored A button mod on one of my Wiimotes. Changing the player indicator LED's on the bottom of the wiimote was easy, and I used standard 60mcd 0603 MCD LEDs and they were bright enough.
Doing the multicolored A button mod is pretty difficult. I am not entirely happy with the way it turned out. Routing some of the wires close to the +, home, and - buttons changes the feel of them (they become harder to press) so I have to find a different way to route those wires. And I was not happy with the brightness of the 60mcd led's, so I have ordered some 1206 SMD LEDs with a brighness in the range of 150-500.
Here is a pic of the results for now. Once I get the new LED's I will tackle this again and see if it is worth it.
