Sean,

Two part epoxy should be available at any hardware store with the rest of the glues and adhesives. There are many brands. Generally speaking, the ones that take longer to set have a stronger bond. The are noticeable
for having a double chambered syringe. When you push down the plunger the two parts are released in equal ammounts and ready for mixing.

I have made 2 dirks, 2 sgian dubhs, and a lot of "sgian don'ts" (not to mention countless repairs to my children's toys) and can't say enough good things about the stuff.

Cheers

Jamie