The material should be firm and without elastic.
First cut the pattern and put it on the material. You need two folded pieces.
My material was really thin so I added a lining that will firm the fabric. You should cut it in the shape of pattern and iron it on the fabric from the inside (wrong side).
Sew the folding end and you can zig zag front endings.
Cut some elastics and sew it in the middle the way you like it.
I made these two little bows a long time ago and it's time to use them:)