I had a call maker friend of mine call me up and ask me to do a couple of deer grunts for two of his pro staff guys. Here is what I came up with. The one on the left is sweet gum and the one on the right is spalted sycamore.
(http://i909.photobucket.com/albums/ac295/Scott_Strangfeld/Deer%20Grunts/EricsGrunts.jpg)