I personally got most of my calls from Johnson’s waterfowl They are pet quality but I love mine dearly! I ordered assorted so I’d have a variety of colors. I payed 6 dollars per duckling and added a heat pac and food. The cost of shipping to my area was around 15 dollars if I recall correctly. Emily Johnson was very kind and really good at telling you the ship dates etc. I would most definitely recommend them I am very happy with all of mine (they arrived happy and healthy too)!
I also have a couple that I recieved via a private breeder from Craigslist that was right near me. Those are better quality but were also more expensive. Personally I’m not very concerned about what quality they are because I love them all the same.
My personal favorite color is definitely my black bibbed call (Splash)! He came from Johnson’s waterfowl. He is a sweetie and his green/blue color is gorgeous!
Good luck! I hope you find some!