In a large library, we get a lot of patrons who bring in their personal objects. Phones, laptops, iPods, we get it all. Glasses, hats, gloves, necklaces, we've found them all. Wallets? Got those, too. Strollers? Surprised? We've had two name-brand, expensive strollers left behind from children's events.
What's surprising is the number of things that are turned in. Wallets and phones; that winter coat? We've had them all turned in to us at some point.
Sometimes, though, they go missing. Flashdrives are a common thing for people to pocket since they're palm-sized. Another thing that goes missing are phones. While they're usually turned in, sometimes we'll get a phone call asking if we have one that isn't in our lost and found basket.
Weirdest thing I've found? Someone's hoodie in the back of the stacks.
While weeding older books in the science section (500s for you DDC people), I've found flowers and leaves dried in the appropriate classification books. Bookmarks that are old, recipes, prescriptions and notes are all pretty common things to find in older books.