I had never heard of the D9P until this message board (I may be really out of touch with new quilting). I finally looked up what it was after seeing all the posts about it. Interesting design so I started playing around with it. I have no idea if anyone has come up with these placements and only using 3 colors but, it's what I came up with.
I may play around with it a little more and see what would look good in the white block areas on one of them. Something that would tie in with the rest of it or totally different like a star.