I love this idea! :) and think it's especially cute when there are fingerprints of the bride and groom wearing a veil and top hat. :) Guests put their fingerprint in your paint color of choice then sign their name next to it (perhaps different shades of green like the photo below). It makes for a cute, modern wall display for your new home! For a fall wedding, you can even use shades of red, yellow, and orange. Here is one customizable option found on Etsy!