None of my old Master Replicas lightsabres were working anymore and I found that they were awkward to display. Even cleaning out the battery compartments and giving them fresh cells didn’t help much.
I broke out my Dremel tool recently and cut the blades off. They’re much easier to display now! I popped some nails into the wall for the time being to show them off.
There are some newer models that are much sturdier that can actually be used for duels, so maybe some day…