I found a fantastic block over at City House Studio. I recently acquired a lot of white, since I've never used it, and I wanted to experiment with using negative space. These blocks are still whimsical and follow my modern style (and bright color choices) utlizing white to make the little squares really pop.
I decided to play with some scraps from the Irish Road (mainly because they were already in 1.5" strips and I only had to cut them one more time to make tiny sqaures). But I just went for it and didn't really think about finished size when I arbitrarily chose to make the center 5 little squares - lesson learned, that's a little small - it is now a 4" block which will finish to 3.5" once joined with anything else.