I haven’t done any LDing for a while now - but when I saw this I thought that it might interest you all: indie-rpgs.com/forum/index.php?topic=18593.0
Sounds like a way to get (not quite literally) shared dreams that has nothing to do with supernatural waffle, and also just being damn cool. Not sure if it’s technically a lucid dream or not (maybe more of a hallucination) - but it sounds close enough that it doesn’t actually matter.