Roll small piece of fondant (placing extra fondant in small sealed bag) on a confectioners'-sugar-dusted surface until about 1/16 (I use the pink guides on the small Wilton rolling pin). Place one half of the feather mold onto the fondant and cut around the outline of the mold, about 1/2" bigger than the mold. Line up the other half of the mold, sandwiching the fondant in between by gently pressing straight down. Remove the top mold, and carefully remove the fondant feather, placing back on dusted surface. Use sharp paring knife or craft blade to trim excess fondant and to create some tiny slices along the edges for a realistic look. Let dry on crumpled paper towel, shaping them slightly to dry the way you want them (slightly curved, etc).