Wing
A feather is on a rice paddy, and they are attached together. You put a feather on a rice paddy to create a giant airplane. Flawed, sure. But, this rice paddy + feather is going to be one wing of your amazing aircraft.
Imagine a wing that is made of a rice paddy and a feather put together. Doesn't make sense, looks ugly, and probably will not fly. Imagine it anyways. It is your wing.
よく
つばさ
None
To make the feather and rice paddy stick together you need some kind of sticking agent. This time we find the original bird that the feather came from and grab its eggs. We break the eggs open and use the yolk (よく). It's pretty sticky, but still probably not aircraft safe.
Imagine using the yolks to stick everything together. It's all over your hands, and things are pretty nasty.