We love this response the grandmother-to-be:
"...As you can tell by their faces, they had no idea what color was going to come out! I was the only one at the party that knew the gender, and being Grandma, it was very hard for me not to give it away before the reveal!
Thanks again for this great idea! First in our area to ever hear about much less use it at a reveal party. Everyone thought it was in the cupcakes....BORING! LOL Big, Big hit!"