Hey J, I used a real thin layer of sculpting epoxy ... at the time I believe it was Sculp-All, but Apoxie Sculpt will also work. The ears are the very last thing I do. I model the mouth, nose, eyes, and inject the toes, then I "line" the ears. Using a fine tweezers or Hemostat, I pick the bottom of the ear canal up to the outside of the ear, and make a small slit there from front to back, using a small, sharp scissors. Depending on the air temperature I mix the epoxy up a short time before I need it so it has time to firm up a bit. In warm weather I mix it up maybe five minutes or so before I need it, and in cold weather I can mix it ten minutes or more beforehand. Then I take the mixed epoxy, roll out a short "worm", flatten it, dip it in water, and slide it up into the ear. I place a little ball - more oval shape really - down the hole to the base of the ear to form an ear butt. I push the ear canal back into the place down to the base of the ear. The ear is set into place on the ear butt, and all epoxy is blended, then the ear and earbutt given form and shape from the outside. When satisfied that the ear is correct, I leave it alone until the epoxy sets. It's just that simple. I get a nice thin, and strong ear! John.