These cover ups are called by many names; hooter hiders, nursing covers, breastfeeding blankets, modest mommy covers, breastfeeding covers, mommy covers or cover ups, etc. Some designs have patents, this specific design is a basic cover up with an extra band at the bottom to add weight. You are welcome to print this tutorial, email it, link it, share it with friends, make them, sell them, whatever... it's a free tutorial, feel free to modify it to fit your needs. Good Luck & have fun - (all feedback is appreciated for clarifications.)
Step 22: Unfold the band, turn in the edge and sew a 1/8" seam, repeat at the opposite end. Refold the band.
(This is how the cover up should look at this point.)