My hubby and I were discussing doing a Gender Reveal during my daughter's birthday party next month. I will be able to take the Harmony test in a couple weeks and should have the results back by her party. I was thinking that if I did her cake I could color the layers pink or blue or let her open a present letting pink or blue balloons come out. Would it be too tacky to do this during her party? We were thinking that while we had all the family and friends together it would be the best opportunity. Thanks for any input.