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!