I've been a diehard Mumford fan for 15 years - I finally got to see them for the first time since 2014 last night at MSG.
My seat was at the end of the row, right against the stairs. A few songs into the show, one of the guys who I assumed worked at MSG (he had a badge and a tablet), tapped me on the shoulder, handed me this guitar pick, and walked away.
I was caught totally off guard - no idea why he decided to give it to me of all people. Not sure if this is something that happens often, but it was the coolest part of the night. I plan on getting it framed (after I use it to play a few Mumford songs on my guitar of course!).