once sent a mailing list message out for my old band which had one side of a hypothetical conversation in it about going to one of our gigs.
Added a line that was meant as a joke setting up a competition to film the best recreation of said conversation.
The next day a mate of mine handed me a CD and said, play this on your computer.
It was this: https://www.youtube.com/watch?v=MLM3SJkuU5Q (they'd wrongly interpreted it as a non-sensical conversation, not realising that was meant to be just one persons script)
The prize I'd mentioned in the mail was a pie hat. So we had to make them a pie hat. Luckily a mate of mine was the chef at Sally Lunn's in Bath, and loved baking. So he baked a pie hat for them.
Here is said pie hat with the victors: https://www.facebook.com/photo.php?fbid=15798650359&l=cd78d525cc.
Best hat ever.