Announcing...

So I’ve told my dad and little brother and sister that I’m pregnant. I’ve told my mom and my fiancé mother. Now I’m jut waiting to tell my two older brothers and sister in law. Simply because she’s also pregnant atm. I’m about two months behind her. I want to announce it to them on Christmas eve. But I want something really cute to say or gift. But idk what. I want it be something along the line of best friends and cousins cause they’ll be so close in age... I’m just struggling with ideas. So does anyone have any suggestions??