They make fine door stops. Our shop once used nothing but the early NP-1’s and I always said the NP stood for “no power” or “nearly pooped”.Seems like they never lasted very long and man, was a bag of them heavy.
You can get NP-1 re-celled at many battery stores. Though they are not going to be competitive with hydride or lithium batteries, nicads still have the positive factor of being rugged and able to take heavy abuse in charging and discharging. I think you could use them to power some spare lights for outdoor work sans cords, or to put in out of the way areas on a set. They are a handy size to use in an audio man’s mixer bag…That’s probably what I’d use them for if they were holding a good charge and I felt guilty about junking them.
If you just want to be rid of them, why feel bad for a low ebay price? You’re letting someone else get some productive use out of them instead of just junking them. You can also try freecycle.com to give them away.
“Oh, you wanted to RECORD that?”