what fondant recipe do you use for sculpting figures?

Fondant is very soft for sculpting figures. You should either use all gumpaste or 50/50 (half fondant/half gumpaste).

I have used straight fondant (Wilton's purchased) for tiny items (not much more than 2" tall).
They do better if you use 50/50.

I agree, if using fondant - use a 50/50 mix. However, my new obsession is CANDY CLAY! Fantastic for modeling!

I love this one

http://www.designmeacake.com/id27.html

I use Satin Ice brand fondant for everything, covering cake and molding figures. I don't dry my figures, however, as the kids in my family always want to eat them. When I have used gumpaste and dried the figures, they've been disappointed that they couldn't eat them!

I use Satin Ice with just a little tylose added to it. I really don't like the Wilton fondant at all. I have used MMF but it wasn't as easy to work with.