I’m looking to take some photos of my baby’s feet in dads hands and was wondering how I would get the black out effect in my photo?

Looking for any legit baby photo contests that dont spam you or ask for money

I’m 15 (turned 15 a week ago) but I’m a baby face. A game comes out tomorrow that I want to buy and you have to be 15 to buy it. The only possible ID I can think of is my passport, which unfortunately has a picture of me at the age of 6/7. Will I be able to get the game with this ID? (It still says my birthdate).