A while ago I purchased a black t-shirt from Asos. It has a deep scoop neck and back. The shirt kept falling off the shoulders, which is super annoying, so in order to wear it I needed to find a way to keep the sleeves put.
I saw some tops with bows to tie in the back, which would hold the top in place, so I worked with that and bought a 2cm wide glitter ribbon to sew three stripes on the back. The top one was just the right width to keep the shoulders in place so that they wouldn’t slide off. The other stripes completed the back.
Simple. Check it out 🙂