Not having any Command models available to them, I took to converting up the Standard Bearer, Musician, and Champion. And what about a Daemonic Herald?
Standard Bearer; arm from Beastmaster on Manticore, banner from till receipt!:
Had to sculpt the left shoulder and upper-left arm:
Musician horn from Witch Elf Musician; Champion has Morathi's head & rack (w00t!) and charioteer's whip:
Then The Daemonic Herald, built from Dechala, Slaanesh Lord on Steed's backpack, Hag from Cauldron of Blood's head, Morathi's hair, Daemonette for the legs, Green Stuff to cover the neck... Eesh! The legs did end up looking thin, but then Dechala's lower body was WAY too small. I kept with the theme of 'six', so she got four arms. Have been tempted to make a sans-Standard version, but as I always give her one when playing...