The consensus is, they can be fashioned into weapons. The batteries can be used for who knows what. If you've ever watched Lockup, you realize prisoners have a LOT of time on their hands, and find ingenious ways of perverting any object into a weapon.
I saw one episode where an inmate used plastic drink cups, lit them on fire with a lighter, twisted the melting plastic into a point, and then quenched it in the toilet bowl. Once he took it out, it was a solid stabbing weapon. Totally and 100% lethal.
If they can turn plastic drink cups into shanks, imagine what they could do with a metal or stainless steel, or hell, even a wood, mod, apv, or any vape of any kind.