At a quilt show a few weeks ago I learned the same company that made the two sizes of twister blocks has come out with two more EVEN smaller size tools. The smallest one looked about 1 1/2 inchs square. And all the different sizes were the same price. I haven't checked the manufacturers website yet to see what the actual sizes and prices are there.
Oops forgot to say I love both of your twister quilts. Very pretty.