You can also do a lot with a "Disappearing Nine Patch", and they are scrappy looking too. If you cut your blocks a nice size you can whip right through one. I made a twin sized "10 Min Block" in an afternoon. I didn't ever master the 10 minute per block aspect.. more like 20 per block, but it was still SOO FAST and I wanted the tips of the center diamond to be perfect given I was donating the quilt to the United Way.