Here is a quick and easy string block to go with our Starz from earlier today.
To leave a little wiggle room, start with 7 inch long strips of red fabric. Cut them in random widths from between 1 and 2 inches. You will need somewhere between 5 and 9 depending on how wide they are.
Sew the strips into pairs and the pairs into quads and continue until all of your strips are sewn together in one big block. Press the seams to one side. If you can, leave wider strips on each end to make it easier to square up.
Double check to make sure your block is at least 6.5 inches big. If not, add more strips until you get a big enough square.