Chris writes – “This is my (our) first modification. We got the inspiration from Arkku on flickr. We did ours a bit differently, he used 1 LED, we used 2. The process is the same for each. Since there are only 5 volts to work with, both versions require the circuit to be built in parallel. I just have one more parallel circuit in my mod. There are two options for this mod. One involves removing the circuit board, the other leaves it in and splices the connecting wire. The choice is yours.” Link.
HOW TO – Make a glowing keyboard