They had these cool Light pens they had made to doodle with.
I decided to make some when I got home, and remembered the old Sun three buttoned mouse I had saved in my parts bin .
Step 3: Removing all hardware.
Step 5: LED holder.
Step 6: Soldering the 6 wire connector.
Step 9: It works!
Step 10: Dont forget the camera remote....
Step 11: Drawing in the dark....
I found the Blue and Red were really over powered the green, perhaps I will put a pair of resistors
on those.also I could buy a RGB led with all the emitters in one , but this was made with parts "mined" for old Tech waste.