Absolutely love this idea! Gender Reveal Baby Shower Sign-in idea: Team Pink or Team Blue. Ask attendees to sign in with the appropriate color marker on a matted and framed ultrasound picture. It's a keepsake Mom to Be will treasure forever!
When you arrive at the party you choose a mustache or a set of lips depending on which you believe is correct. Just before the gender is revealed every one holds up their lips/mustache & take a picture of the group predictions!