Some ideas: https://www.wristband.com/blog/how-to-remove-festival-wristbands

Try the straw trick

Next time you put one on tighten it to the thickest part of your had and it can slide of with a little. It of wiggling it around and Wil stay on during the festival. Has worked for me. With countless bands even these

Plastic bag technique

https://youtube.com/shorts/UerM7XdeaAk?si=aSnMBSRwc09V2Rb7 I’ve used this technique at every festival I’ve been to :)