I would suggest a simple rail fence, with just a three strip block. This would only entail sewing three WOF strips of fabric together, then cross cutting into blocks and sewing the blocks together. If you used 3 1/2" wide WOF strips, the blocks would be crosscut at 9 1/2" to finish at 9" square, and a nice lap quilt size would be 5 blocks wide and 6 blocks long, only 30 blocks. I make some like these for charity and they go together really fast.