Here there is a blog post on how to install Skype on Fedora 21 by quickly creating an RPM package.
[http://mariuszs.github.io/blog/2014/skype_for_fedora_21.html](http://mariuszs.github.io/blog/2014/skype_for_fedora_21.html)
It's also a great simplified tutorial on how to build any RPM.