Does anyone know if there is a fondant mold for sale that is similar to this feather wing?  Most of the molds I found on Amazon are small angel wings.

https://www.pinterest.com/pin/577023770989257499/

I am not sure this is a mold. Wings are not difficult, just a little time consuming.  Make yourself a flat wing shape (with wires or skewers for anchoring) and let it dry thoroughly.  Start shaping the feathers by rolling out pieces of fondant and flattening them with a rolling pin. Cut out the shape and use any pointed tool or toothpick to make the center vein and several lines radiating out from the central vein. I use a knife, applied gently for that part.