Well, I stand corrected. You got me thinking, so I hit the tying table this morning and gave it a try.
First attempt with coarse, green-dyed whitetail deerhair was an abject failure on a #22 up-eye 94840, but I tried it with some fine red deer hair (i.e. hair off a red deer, not red-dyed deer hair), and it worked fine. Used 12/0 thread, laid a base wrap back to even with the hook point, and was REAL gentle with the spinning, and it worked. When finished, I ended up with a hook gap that was closer to that of a #24, but it could still work. Didn't bother with palmering a hackle through it, but it could be done for sure, and boy, would it look 'buggy', esp with a grizzly hackle. Its a very small-bodied fly, because there is no way to effectively spin the hair back of the point of the hook. Not sure where you could buy pre-dyed red deer hair, but I expect Bryant could do you a small batch. I used a bunch of hair 1/4" in diameter.
Sorry for the lack of a photo; camera's not at home right now.