o/
According to the fluff, the Guardians of Il-Kaithe have fairly close ties with their Dark Eldar brethren, and are known to use similar squad markings. Well, I don't have any Dark Eldar decals and hand painting unit makings is out of the question for my painting skills. So what other options are there?
As you can see, Dark Eldar bits were the answer!
Most of the rest of the squad have Dark Eldar bayonets on their shuriken catapults, which like the trophy poles, blend quite well with the Craftworld sculpts. The bits I ordered didn't have enough bayonets for the whole squad which is fine. There always has to be at least a few Eldar on the straight and narrow.
The gunners likewise don't have any blades on their catapults, though I would imagine that one of them could grab the polearm without the skulls were the situation to become up close and personal!