Two bottom ones were prizes, and the top one was part of a trade.

Something like the top starts at 7$ for simple patterns, price is about 10$ for something complex like the one pictured here. the feather is 6 inches.

feathers like the botom two start at 5$ and go up with complexity. these two are 5 inches.

they are mounted on a small silver hair clip with teeth and a spring for a secure hold. :] I keep one i made attached to the fur on my fursuit head. :]