How do I "paint" on Fondant?

Use a tiny paint brush..mix some Coloring gel w/ small amount of extract or Vodka.. go easy on the gel..

use the americolor gels....straight up!!! they work great.........here is a cake I did........I only painted the grass on the side though.

http://www.cakecentral.com/modules.php?name=coppermine&file=displayimage&meta=allby&uname=khalstead&cat=0&pos=3

http://www.cakecentral.com/modules.php?name=coppermine&file=displayimage&meta=favpics&cat=0&pos=-32582

http://www.cakecentral.com/modules.php?name=coppermine&file=displayimage&meta=favpics&cat=0&pos=-32578

here are some by CindyW...she uses the americolor gels straight up too.

WOW !!! CindyW's cakes are amazing!!!!!

I just use watered down gel colors, that is how I did my baech scene and the top of my sleepover cake..

Hope that helps!