How I made them:
1) I bought a ton of cheap white towels from Wal mart - this was actually cheaper than buying material from a fabric store. I then cut out a pattern, and copied the pattern onto each towel to make the remaining ducks. I then bought a bunch of stuffing, and stuffed the insdie of the heads and the bottoms. I place touques with strings inside each head so that they would could be tied onto our heads and stay in place, along with velcro lining to secure under the chin.
2)for the face, I cut up cheap hats from the dollor store to make the duck bills. I cut the rim of the hat off and covered it with yellow material and then sewed them onto the face. The remaining eyes and mouth were made with felt and sewn onto the face.
3) the Duck feet (also all stitched by hand) were made with a yellow blanket, and I sewed elastics around them so they would secure to our ankles as we walked.