While wearing one of the many "Other Hats" that I sometime wear, I was cleaning out the boiler of an old steam locomotive that was to be restored to operation after being on public display for many years outside an industrial site.
The interior of the boiler had come to be filled with what turned out to be a heritage collection of drink bottles. These bottles were cleaned up, and sold on Ebay to bottle collectors for a handsome profit that went into the restoration fund!