U Can't Touch This
Students are starting to return textbooks at the end of the school year, so I put up signs on returned books asking students not to touch them. I've also had many students ask who "McHammer" is and does he have anything to do with McDonald's restaurants, or ask what kind of hammer an MC hammer is! It's really hard not to laugh out loud as I explain who he is and watch them frantically look him up on their electronic devices.
Last year I had this sign up and it was a hit, so I decided to use it again. (Photo of last year's sign in action --> www.flickr.com/photos/vblibrary/4709333227/)
Feel free to print and use for your classroom or library.