We needed some strapless wings for a wedding. Most online tutorials wanted the hanger to be inserted into the “bodice” you are going to use. Well my little R1 was wearing a flower girl dress. So I did my best.
Bend the hanger back on itself so it makes a “U” shape the insert each cut end into each side of the cardboard wings.
Then fold the hanger back over itself again so the hanger part is down to go into the dress. It nestled just behind the zipper.