Telling parents

So I am 5 weeks with my first, which is my parents first grandchild. My husband has 3 nieces so his parents have been grandparents for 20 years. I want to tell my parents I’m pregnant in a fun way and possibly get their reaction on video. My dad is a big softy and I wanna make him tear up! I’ve thought about putting my brother in a shirt that says uncle on it, buying those fake lotto tickets that scratch off to say “we’re pregnant”, or maybe framing a ultrasound picture.Did anyone tell their parents in a fun way? Any ideas or suggestions?