The first is to play off the greek theme shown off in some of the slaanesh artwork for mortals, my idea is to take Idoneth helmets and put them on the bodies of kairic acolytes, replacing the shields with marauder round shields and adding some slaanesh iconography here and there. The big axes carried by some of the acolytes already looks good for the chaos greatblades chosen are supposed to have so that's a plus.
The second idea was somewhat inspired by Slaanesh's good old boy toy Sigvald and his mirror guard. This idea would involve taking some stormcast bodies, which i'm currently stuck between using liberators or the winged ones (I can't remember their name for the life of me) and replace the shoulders, heads, weapons and shields with leftover bits from my chaos knights, then paint them up to be as shiny and obnoxiously silver and gold as possible.
Anyone have any preferences for which I should go with or have any other ideas to pitch in?