Umm for my naughty fairy stories I was looking up gnome porn.
Perhaps not fascinating but the easily most unforgettable piece of research involved a group of men on a beach in Norway wearing nothing but gnome hats. Let's just say it was obviously not summer.
One of my cousins filmed a documentary on a nude skiing club in Bavaria, and he (and the cameraman) skied up behind a gentleman going down the slope in skiboots, socks, goggles, gloves and a furry bobble hat. He started the interview "Excuse me, sir, but don't you find it gets a little cold in these parts?"
Personally, I generate so much heat while skiing the most worrying thought is the drag lifts…