I started my May blocks the other day, and I love B-3, Christmas Eve! Was there ever a larger sized block with this pattern in one of Jennifer's books? It would look lovely in a Christmas quilt.
As for B-10, I cut everything out and then discovered the dreaded Y seams. So I recut those blocks to avoid them - cut 8 rectangles, 1.5" x 2.5", of focus fabric, and 8 1.5" squares of background. Sew diagonally at one end, 4 slanting one way and 4 the other. I hope this makes sense! I don't like my finished product so may redo as the resulting star is a bit too low volume. Will post a photo after I redo.