Well, how much do materials cost? (Per plush.) And how long does it take you to make one?

Well, the cost of material can vary for the type of fabric I use, mostly I use polar fleece for how soft it is. Some need other stuff like leather. The most expensive material would be the iron-on printable fabric for their cutie marks and eyes. Sewing them by hand can vary from pony to pony. The head and body doesn't take much time, but the tail and manes, as well as any wings or accessories, can take a bit more (especially for one's like Twilight, Rainbow Dash, etc) who have multi-colored hair.

Forgot to update this post, for I have also made:
Rarity, Twilight Sparkle, Daring Do, Applejack, Derpy, and one custom pony.

I was originally thinking that $20 would be reasonable.

$20 sounds totally reasonable. :)

How big are they? You might wanna offer customs too. :)

They are 10" tall. Custom ponies can always happen, would just need a ref pic, as well as a good image of their cutie marks.

Cute! I think you'll be able to sell them. :D <3

Yeah, just have to find some time to make them, and a space at a con or geek market to sell them. Would also be willing to ship them out.

You can always sell them here. Just mail them to people. Make them pay shipping. :p

That is true. Plus if it takes more to ship it, then they would have to pay more. Might think about doing it in the new year.

I really think you should. And hey, if I make some extra cash soon I might just buy one from ya. ;D

That would be awesome!!! You'll have to give me a description, or make a picture of your pony!

Already have one. http://www.furaffinity.net/view/9274964/ and http://www.furaffinity.net/view/9274892/ I sooo gotta let you know when I have money. :D

She is a cutie!

Thanks. :D It took me a while to decide how I wanted her.. I think she came out pretty good. :D

She did come out well. Would be a fun pony to make!