I just read the seedy whistle thread and noticed this tidbit posted by daveboling:
I may have a contender. A home-made copper, Low-D whistle (plumbing pipe) with a rough-sawed piece of broomstick handle for a fipple, held in place with a nail driven through the pipe/broomstick assembly, with 1/4" (thats a little under a centimeter for you mega-state people ) protruding from each side. I have dubbed it “Frankenwhistle”, and its the most responsive low whistle (of the three I’ve tried ) I’ve ever had. The copper pipe attained a proper patina by way of a leak in the workshop roof.
Naturally, I thought - Now I’d really like to see a picture of that! Then I thought about Lark’s Squistle Cranberry’s famous blown-out and unplayable Walton’s that she tried to sell for $45,000.00 
and about all the other time-worn overloved whistles we’ve all talked about. Even if it doesn’t play you can never throw it away, right? I figured they need their own special place to be seen so here it is! 