Step 2: Prepare the shirt
You are going to cut it from just under one armpit to the other.
Then you are going to cut off the bottom where it folds up. Don't throw these pieces away. Save the buttons for another project (if your shirt has buttons). The upper part of the t-shirt you can make into rags,baby wipes or sew them together for a scrappy quilt...etc...
Step 3: Start cutting
Now you can begin cutting. Start from either end and start cutting a piece approximately 1/4 to 1/2 inch wide. You can use a ruler if you want to be exact but I don't.
Step 5: Round and round
Keep going around the t-shirt. No need to sew anything. Just cut right through the seams. If they come apart just tie the two ends together.