There is a type of glue for every repair.
Super glue.
It can be used in an emergency. Surgical glue is a type of superglue.
No type of glue should be used on seat belts.
Elmer's glue or any white glue will do this.
Epoxy is the type of glue to use on bakelite.
Harmony ukuleles where made in the US. They name was sold in the 1970s to be used on Asian produced guitars.
Epoxy would be best for this.
It was a urea-formaldehyde glue called 'Aerolite' .
Some type of silicone glue is best for this. E-6000 is a good choice
Wood glue. Go to a hardware store.
Epoxies are best for this kind of outdoor work.