Step 1: Making the inner valve and pattern
For the fabric of the valve you can use old jeans or use a piece of your tea-towel, vintage cloth or kerchief.
Step 4: Turning the valve in side out
This will be a tricky job, but if you don't do this neatly, it will look lumpy on the outside
Step 5: Pinning & stitching the valve
Step 6: The cloth
Step 7: Attaching the valve to the cloth
Step 8: Unfinished hem is up
Step 9: Finisching it off with ribbon
Stich 1cm out of the hem on the wrong side of the fabric, over the seam of the valve and so on to the end of the cloth.
Step 10: Almost ready
Easy way: use bias tape, pin it and stith it around the hem!