All of the major call makers, Lohman, Primois, and Knight and Hale make fawn calls. I really like the Knight and Hale fawn call, and have been using one for about 5 years now, mostly on deer in the early archery seasons though.
As Mr. Cronk mentioned, check with All Predator Calls first, he might have one. While you're at it, All Predator Calls also has a pretty neat looking fawn decoy.