So this is my first baby . Im going to have a small baby shower just some family and close friends . I just want to know stuff to buy my baby already that no one will buy?

I already bought my baby boy his crib, some pacifiers, swaddles, some clothes, basically i need everything lol but i dont want to buy something someone will buy? Im due in September. what are things i can buy? Oh and im buying the bassinet next week. My parents are buying the stroller & carseat.