These Gender Reveal Cupcakes have pink, blue, and white swirled frosting on top that hides the secret colored heart in the center of the cupcake revealing the baby's gender when you bite into it! (Step-by-Step Photo Tutorial)
Gender Reveal. This is cute... OR... you could put a bunch of blue or pink ballons in a sheet of plastic suspended from the ceiling and do a balloon dop. The plastic would have to be a solid color of course, so you couldn't see the balloons until they dropped. You could add loose confetti sitting with the balloon if you don't mind cleaning it up.