I recommend Estimating 10 Faces per Hour. But I try to accommodate my Clients when they ask me to draw Faster.
Obviously, I can't do what I can't do. But there are ways to get more people drawn (if they all sit for their Caricatures very quickly ~ I can't very well Rush the Guests). I can approach the Artwork very simply. I can just draw Lines without Shading. I can skip the Color. And I feel that the way to keep them Simple is to just draw what I see ~ with not much in the way of Artist's Interpretation.
Still, the Artwork takes on a Quality of its own. Not the Whole Symphony, but a Simple Beauty in its Simplicity. Kind of Classy.
You can click on some pictures in this blog to see them larger.
To Hire Caricature Artist Alison Gelbman: