Interesting puff stitch construction forms a really attractive textured block.
October, 2012--Now revised to include colour switching instructions and improved for clarity!
October, 2012--added round photos

Birdlebee’s additions: for 12” block
Rnd 11: (1DC, sk1, ch1) around. At each corner, in the last but one stitch, DC, then (2DC, ch2, 2DC) in each corner.

Rnd 12: (Puff in top of each DC, ch2) around. At corner, after last puff, ch1 (DC, ch2, DC) in corner, then continue with (Puff, ch2) into top of each DC from row below.

Rnd 13: (ch1, sc) into top of each puff, ch2 space and ch1 space. In corner (sc, ch2, sc).

Rnd 14: DC in each stitch. In corner (2dc, ch1, 2dc).