The stand-out moment, for me, in the History of Jazz podcast, was the little aside about the 'applause hammers' at The Ziegfeld Midnight Frolic. It just seemed so odd and inventive.
Without much hope or expectation I stuck some relevant search terms into an eBay watch and then after a year or so of waiting up popped a hammer.
Of which I am now the proud owner.
I'm not sure what to do with it, obvs. Maybe take it to Ronnie Scotts.