What are some cute gender reveal ideas?

Can anyone help me come up with a cute gender reveal idea? Not a big reveal since my bf and I have not announced the pregnancy yet, we are waiting to find out the gender before telling family and friends. Bf and I are wanting to privately find out together and then just tell everyone else later but I’m having a hard time coming up with a way to reveal it😅 we also have a 2 year old who could be included if anyone has any family friendly ideas, my sister will be the gender keeper since she is the only one who knows I’m pregnant.