Quite a couple of people out there have struck big on a nifty idea- zombies, cultists of Nurgle, and Space marines of Nurgle. So, in response to this, and also just because I really like the idea of it, I'm going to (or at least try to) make some cultists for Slaanesh. For starters, no, this is not all going to be sex, drugs, and rock and roll (though that will be part of it). It's going to be based on some of the core principles of Slaanesh: pleasure and experience in all forms, not just the big catchall involved a lot of the time.
There will be fashionable, high quality clothing with some off the wall colours (following the latest trends is mandatory for a sense conscious cultist), no fear in the face of battle (experience comes in many, many shades of lavender, and it comes before all), bare right chests (I heard it on the internet and it sounded pretty cool. So, I figure, why not?), highly expensive, venomous, powerful weaponry (either you come prepared or you don't come), enough drugs to bring Elvis back from retirement, and a whole lot of other cool stuff. There will be cultists modifying their bodies, cultists using some potent drugs, cultists exercising extreme restraint (includes bondage and self control- imagine deliberate anorexic look), cultists blasting their boom boxes to 11, cultists erotically pleasuring each other/ themselves (it's fact, even if it is highly overdone- it feels good [I know that it should]), cultists engaging in beautiful acts of fully sensual murder, and cultists doing other things that come to mind as this gets rolling.
As for size or rules, I don't know, besides that the growth will be slow, affected purely by my slowness to do anything (but there will be many, many sketches, you can rest assured of that). I wouldn't have the slightest idea of rules to apply to this, besides that all units will be Fearless (nothing to stop them from experiencing the sensory explosion of... explosions as much as they can), and there will be zombie-like units, who have Feel No Pain, little if any armour, and probably have rather large vials of drug X, perhaps mixed with speed (for added agility). Beyond this? The sky's the limit. And the models themselves will be from across different ranges, and will likely necessitate very much conversion, if nothing else at least to get some smiling faces out on the field. There's never enough of that out there, and I want to bring it.
Some sketches to start this off:
I will also be involving my other Slaanesh based units here, because what's the fun of a pleasure cult if everyone isn't allowed to join in?I will shortly enough be posting some of the more interesting daemonettes/ sketches I have done so far, just to give an idea of some of my ideas going into this. There will be nightmares on this hallowed thread if I do my job right. That's my hope, at least. Chaos isn't all about rainbows, ponies, a weekend retreat. It's about the darkness and corruption at the edges of every man's mind, and how no sentient being is free from the clawings of insane beasts in our own minds. It's about how we are the ones who give birth to and nurse the gods of Chaos, how we make them what they are. There are monsters out there, but the worst are those within our own minds.
Enough words! Here are my daemonettes for now, and a sketch of some fiends I'll soon enough be making.

Final note: if anyone has or knows of any similar projects involving cults and all that (not just centred around the Prince of Pleasure), like
Skalk's cultists, put a url here, and if anybody wants to contribute ideas, go right ahead and tell me (and for those of you who don't want your ideas public, feel free to
PM 
). I am always open to ideas about how I can make some better or just more representative pleasure seekers.

Lord Kaesar II, corrupting impressionable gamers' minds since 1666.