I would like to make a very short LED light string for a Christmas ornament. I would like to make the string with a total of 9 lights; 3 red, 3 yellow, 3 green. I would like to power this string on a 3v coin lithium battery. What I currently have...3mm LED's, some perf-board, momentary tactile switch, copper wire and the battery. Also, I just so happen to have some 470 ohm and 100 ohm resistors intended for white LED's, but I not sure if these can be used. What other components might I need? Please help.