Quote Originally Posted by Lambdafish View Post
It is a copyright grey area. It is very easy to argue fair use ESPECIALLY when the payment is not actually legal tender. If fair use didn't exist I'm pretty sure that etsy, deviantart, redbubble, and other fan art/craft websites would be shut down very quickly.
I don't know a lot about copywriting I just know that it is illegal to reproduce something that was created by someone else that has their design, characters, intellectual property ect.

I do understand there are ways around it all thus being a bit of a grey area so it could go either way. The best thing to do would be to contact SE and ask permission to do this to avoid getting yourself into trouble.