I LOVE OBW, kaleidoscopes or whatever you want to call them. The size of the pattern really does not matter, but may determine the size of the blocks. Check the size of the repeat, and then decide what size block you want. You can make larger or smaller blocks depending on how many lengths you cut from each repeat! They will all be different, and beautiful. Choosing fabric is the most difficult part of the process. Fabric with definite shapes works best as opposed to colors that blend into one another. I am going for the more bold colors now, but they are all so intriguing.