I did 4 of various sizes in MsPaint real quick-like. I think #4 is what you're looking for.

http://www.spoonitnow.com/media/1.bmp
http://www.spoonitnow.com/media/2.bmp
http://www.spoonitnow.com/media/3.bmp
http://www.spoonitnow.com/media/4.bmp