A BB idea comes from Japan and there are a number of ways to make them. I did a very easy simple one!! Plus, I did mine scrappy. Alot of them are just 3 colors. It's the positive/negative effect in them that I love so much but I love them better all scrappy than in just 2 or 3 colors.
I was inspired by one I saw and the only different thing they did that I didn't was to put plain lg. 4p's as every over one. I didn't do that. I also did it the quickest that I've seen so far. I just made lg. 4P's and covered the design wall with those blocks. Next I made the little 4P's and MA around each one so they are raw edge and in 3 days it's done! The small ones are cut 3.5" and big ones are cut 6.5" so when the quadrants come together, you have a 12" block. 20 blocks is all you need. Here are some pics. You'll have to give it a try!!