I never had very good luck with the Desitin, Balmex and other creams that contained Zinc Oxide. I used the Butt Paste and the Dr. Smith's with very good results. I think they both contain some form of petroleum jelly. One time I ran out and I just used Vaseline and it was ok.
My younger sister had a baby shower a couple of weeks ago and I bought her some Butt paste. Her and her husband also thought it was hilarious. I saw that they are also selling the Soothie Pacifiers in Target now. I had to buy mine online because NOBODY was carrying them.