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!
Gender reveal party. I still like a cake for the actual reveal. And having the ultrasound tech write boy or girl in a sealed envelope for the baker, so no one at the party knows what it is until the reveal.