Thanks Roxanne for your kind comments, the cubes come from the book "One Block Wonders Encore" and they are just pieced as hexagons too.
There's a new book out called One Block Wonders Cubed which apparently has more cubes in it but I haven't had a chance to look at it yet. But The ones I did are very easy if you follow the guide in the book.
I have just gotten some more fabric to do another OBW, I can't wait to start it. They are addictive.