My computer case green led failed. I bought some on Ebay, but they are
so bright they light up the room and obscure the other color leds.

Any suggestions for a cheap source of low intensity leds in a 3mm size?
Maybe Mouser, but then $1 worth of parts costs $10 to ship. If I have to
spend that much to fix it, I'll just live without a power led.

Can you add a resistor or something to change the brightness?