LEDs?

I was wondering if anyone had tried to custom make LED replacements for some lights, like the reverse lights or brake lights. Reason I'm asking is because I'm contemplating doing it, seeing as my 63 Dart is missing the pigtails for the reverse lights, and they are seemingly impossible to find.

I ripped the remnants of the original bulb sockets out of my 67 model reverse lamp fixtures. I replaced them with those molded rubber sockets from sidemarker lamps that take a #158 or similar bulb. It's a 2 wire socket so you'll need to ground 1 wire.