This is a method to firmly attach broken thin plastic without using adhesive.
Thin plastics have fewer bonding surfaces, so they break quickly with instant adhesive.
Even where the plastic force is applied, you can receive as strong a force as the first time.
(This is a recommended material for the convenience of DIY.)
hot stapler
Estimated amount US $25.50
https://www.aliexpress.com/item/32999465218.html
stainless mesh
Estimated US $2.89
https://www.aliexpress.com/item/1005002649902733.html