Here is the tutorial on this board. There is a discussion on fabric choice in the tutorial
http://www.quiltingboard.com/tutoria...ns-t92503.html
If you are really interested, i would get the book, One Block Wonders, either by purchase or from the library:
http://www.amazon.com/One-Block-Wond...der+quilt+book
It is a very easy quilt, on a scale of 1-10, i would rate it a 2. You need fabric that has an EXACTLY repeating pattern, so a batik can't be used as they usually are hand stamped.
A OBW is a specific type of kalidescope quilt where there are no contrasting fabrics used.
Here are examples from our board. Easier to show than explain.
http://www.quiltingboard.com/members...bums16953.html