What I would do is pick an alternate theme. It doesn't matter what it is, but it should be roughly "This is a fey hunt that also represents......" Once you know what it represents, you can pick an appropriate creature, or simply use horses but describe them as occasionally having appropriate features.
For Example: "This is a fey hunt that also represents a swarm of bees. The hunters are narrow with large eyes, golden skin, and dark hair. Their saddlebags seem covered in glowing fluff (pollen). The mounts appear to be horses, but they are slender, black-legged, with gold-and-black stripes. The hunters use spear, arrow, and lance."
Another Example: "This is a fey hunt that also represents a fox hunt turned upon itself. The hunters have a reddish cast to their skin, and are red haired with streaks of white. Their faces are vulpine, their laughter comes out in short, sharp barks. The horses seem low to the ground as though their legs are shorter than those of normal horses, but if one actually looks closely this seems to be an illusion. The horses are roans with white socks, manes, and tails. Prey animals might appear strangely human. One of the hunters might already be blooded. After the cavalcade is gone, they seem smaller in recollection than they did when they were present. The hunting dogs now seem to have been foxes."
Good luck.
RC
