One of the ideas I'm kicking around is designing a RPG set in the "psychedelic era" of the latter 1960's/early 1970's. Without going into a lot of details, it is centered on the fanciful world created by psychedelic rock band from England. Rather integral to the story is casual marijuana use, to the extent that one of the major races are those termed "pot-head pixies". The drug use is focused on the lighter side of such activity, with LSD also playing a role. Obviously this will be privately marketed through the band's website and (hopefully) through other sources. I'm just wondering what you folks think about such a game, specifically with regards to using casual drug use in that context?