Years ago, Interarms had so much stuff they couldn't sell that they turned a lot of them into lamps. Old rolling blocks became floor lamps and old Italian revolvers became table lamps. They made rather nice displays and most were in such poor condition that they were small loss as guns.
I once knew a man who had some old junk revolvers chrome plated and displayed under glass on blue velvet in a sunken coffee table. He figured any intruders would go for the shine and not look for the concealed room where he kept some very good stuff. I don't know if it would have worked, since AFAIK he was never burglarized