How do you get your cartoon copyright and how much will it cost?

First of all, here's a tip. To save money, make a whole bookful of cartoon characters. That way, you'll have copyright access at a lower price than spending hundreds and maybe thousands of dollars on one character at a time. Be sure to copyright the script also. Copyrighting your creations should cost anywhere between $30-$100 more or less. Anders- P.S. By the way my penname is copyrighted.