The handle on my Samsonite carry-on luggage bag snapped off at the airport. J-B Weld Plastic Bonder fixed it! This stuff is no joke. Highly recommend.
https://www.lowes.com/pd/JB-Weld-Plastic-Bonder-Brown-Epoxy-Adhesive/1000820860
UPDATE 4/26/24
Also used it yesterday to repair tear in the rear flap of Ryobi mower. Works!