Any use for a kyocera hydro event other then a paper weight ?

I originally ( over a year ago) used them for perk tv but after a while I was lucky to see them even run one commercial a day. I eventually factory reset them. Deleted and disabled everything on the device besides the web browser and side loaded checkpoint which work successfully for a few months but now they can't even run that any more. Is there any way to even make $0.50 a day of them passively ? I honestly don't care if I'm making close to nothing, I still have to of them and they still work so as long as they can turn on I would like to squeeze every penny I can from them