There are types of extremely tough plastic epoxies that you might be able to use. I would recommend using an epoxies that you have to bond before applying. Those are usually the ones that work like quick cement and work well. Of course it could work and it might not. I would try that first and then make sure to check them every so often to make sure that it is still holding. Of course hindsight is a bitch but I would recommend insuring the package next time you gotta ship it. I do it with all of my automotive shipping.