They are not hard to make. I know that there is a tutorial on this board by one of the members. I made one for my MIL and she really seems to like it.
I found the link for the tute by Uglycook:
http://www.quiltingboard.com/t-48923-1.htm
Here is the link to the one I did. I used a different method so mine has a different effect:
http://www.quiltingboard.com/t-46230-1.htm