(a bit late with this, but posting anyway)
yes, a picture would be helpful.
I have quite a bit of experience with various types of adhesives on various materials.
As Aethien said, cyanoacrylate adhesive should work, but we aware that some plastics will not bond well (you'll have to consult our resident chemist for a more technical explanation).
Also, all epoxies are not created equal, and they can be messy. It might be applicable if the break isn't clean.
Another option, if you think its not stable. Wrap some thread or string around the break. This can work with either CA or Epoxie. This is how the eyelets are glued to fishing rods. It's a great technique and can even be presentable looking if you are careful.
If nothing else, there is always... :p