How about a thumb drive, or a CD-ROM, full of photos of stuff around chicago, or wherever they are from. It doesn't have to be anything fancy. pics of sunday morning activities, i.e. ball games, people mowing their lawns, people running through sprinklers, raking leaves, the greeter at your walmart, candy, the bakery store, their curb, mailbox, house numbers, everyone at the party, of people fighting, laughing, license plates, ambulances, the ice cream truck, the metro, the turnstyle, a neighborhood pizzaria. etc.etc. kids at the mall, kids at the skate park, kids sneaking a smoke at the back of the movie theater, used cars salesmen.
I could go on and on. I think the point I am trying to make, is that we have all these really seemingly mundane things which help to color the feel of a place. All of them seem unimportant, until they are out of reach. if you could snap pics of the everyday, it might do down very well.