For a 3 inch strap:
*Cut fabric 6.5 x 9 inches: you will need 4 sides and whatever material you want to put in the middle for absorbency, such as flannel, terry, or fleece.*Layer two outer layers with right sides facing.
*Lay insides on top.
*Sew around outside starting in the middle of one of the long sides using ¼ inch seam. **Make sure you stop your stitch 2.5 inches from where you started so that you can turn the pad right side out.
*Iron flat and sew a decorative stitch around edge to close seam.
*Add snaps with snap tool, or use Velcro. (I luckily have a good friend who has an amazing snap tool that I got to borrow. Thank you.)
These are made with 4 layers of flannel and are reversible.
**I have made some with terry on one side and cotton on the other. Depends on what your baby likes to suck on.