I made a quilt using one square and turned it a couple of different ways to achieve what you are asking. I found the block here
http://www.quilterscache.com/T/TennesseeBlock.html
and this is what is ended up like
http://www.quiltingboard.com/picture...s-t201275.html
I love patterns that form others when you look into them.
Good luck with it and show us what you end up with.