MP Buzzsaw broken - any remedy?

The fold-up flaps on the weapons on my MP Buzzsaw and Laserbeak have such stiff joints that one of Buzzsaw's is starting to break. Is it worth trying to rescue it with a bit of glue, or is it display-only now? Is there a good way to loosen the joint on Laserbeak so it doesn't happen there too?
It's a shame because I really like the way these guys transform...
It's a shame because I really like the way these guys transform...