Yes. It's a better idea to cut the rod off flush with the inside of the shell though, and then glue the surface mount LEDs behind the rod with canopy glue or something that dries clear. Make sure to heat the end of the rod to turn it into a lens. Or, if you want to use a larger LED, take a 5MM, take the rounded lens off, file it flat, then cement it to the flat end of the plastic rods. If you use Faller Expert Styrene Cement, it welds the LED to the plastic and creates an optical surface between them so that you don't scatter any of the light.