I believe the information you're looking for is in Skunk Magazine, Volume 6, Issue 4.
Rather labor intensive process, but Dr. Feelgood wrote a very detailed article on rolling "Sensigars". Saved the magazine in case I ever have a weekend I wanna try em out. Good bit of work, but you'd be the shit if you busted a couple out in front of me!
See if you can pull up old issues online somehow. He boils em down in sugar to help em retain their shape, and uses a hollowed out piece of cannabis stem for the filter/mouthpiece. More of a novelty than a functional way to roll, but one hell of a pack of smokes if you get em rolled up!