Not Square or rectangular.

Below are some cards which aren't your regular shapes. Hope you like them.

The card above was made with a border punch that does circles and ovals as well as squares. if you mix your two circle sizes you will get a heart shape.

I've entered the one above in a blog comp

http://craftysentiments.blogspot.com/2011/04/glitter-it-up-challenge.html

This was my own design and the one below uses the same outline. 

Yes this is basically a rectangular stepper card but I added trees and grass and thought it would pass in this blog, just lol.