Score, HST! Easy peasy! I make them with big squares of fabric, 8 at a time. I just make a stack of about 12, then cut them apart. Or more correctly, with my cheerful assistant, I draw the cut lines carefully, and he very very carefully cuts on the lines with scissors. My rotary cutter might be tidier, but my assistant is only 8 and I don't trust me with the rotary cutter quite yet. Plus, I make them a good deal larger, and trim the 1/4-1/2" off the edges to have a true square block.