If a use can be found for the item, even if not the original one, it cannot be useless.
An item that I use at Shows, when they happened, started life as a candle stick. Slightly modified, and with the aid of an Aluminium ball and a supply of compressed air, attracts attention from youngsters, and sometimes, their parents!
The process is known as adaptation, I think.
One mans meat is another's poisson! Apologies to all French speakers!
Howard