I live in the and she shows chickens which I'm not very intrested in. Ive heard of poeple that have there ducks on a leash. Your better off getting them at a local breeder. I tame my chickens by holding them and petting them teaching them that I won't hurt them, it may work with ducks, but I'm not sure.
Ducks are fun.
I have some other information. There are some other sites that are interesting and informative. I have not purchased anything from them but their website is informative and has a few pictures of different breeds of ducks. Check with colleges or universities in your state. They can probably give you a lot of information about what is avaliable in your area.