As the Title says "what do you use for heralds models?"

I've pretty much been using greater daemons, but as I've been building up my Khorne forces I think I might want a Knorne herald. I was thinking of using a fantasy lord on a juggernaught with a bloodletter head.

I've been using a horror painted Blue for the blue scribes, but at some point want to make it really like the blue scribes.

What have you done for heralds that have no models?