I've got a Garmin eTrex Legend mounted to my 2009 RMK Dragon. I used a dash mount with the permanent adhesive pad and stuck the mount on the black plastic to the left of my gauge cluster.
No I don't have a picture and my sled's in storage in a friend's shop right now. I might be doing some work on it this weekend so I'll try to grab one. Which handheld are you trying to mount?