I dont see why you could not sell an electric kettle if the cord is in good shape and the kettle has been tested. It may not bring a high sum...25.00-35.00 (USD) but clean and rust free, I would think it is fair game.
Best wishes, Dori
Other items have been contributed by other residents all the items are in working order, however have not been pat tested . All items are for sale to the general public, for just a small amount of money ie 50 pence to £5.00