Gender Reveal

Depending on what the Doctor says Monday, next weekend I was going to do a gender reveal after telling my sisters during the week. Is there any games we could do that doesnt represent a baby shower? I have pink and blue balloons, cute cards for everyone to cast their votes and I was going to make a cake box cake and use color dye. For the reveal I got everyone a silly string bottle and they have to spray each other to find out. I was thinking maybe pin the tie on the onesie or pin the bow on the onesie? Not sure what else.