Customizing ideaas for an 81 KZ440

In the past two weeks my girlfriend and I have have bought two KX 440's. One an 80' and the other an 81'. Paid $500 each.
I am thinking of doing something silly with one of them along the lines of a solo saddle style seat and maybe a wacky gas tank. Possible handlebar modifications as well.

Since I don't know a ton about motorcycles, I was wondering if anyone has any ideas?

take a look through the gallery for ideas.
many,many cool bikes.
anyone can tell you how to customize your bike but in the end YOU have to live with it.
you also have to ask yourself if your willing to spend more then the bike is worth.
the lower cc kz's dont bring very good resale stock let alone trick.

lots of innovative ideas here:

www.bratstyle.com/custom/custom.htm