Gender reveal

I never posted a gender reveal on social media. It’s not a secret that we’re having a boy, I just never found the motivation to announce it. I have had family and friends reach out and ask. With a virtual shower being planned, I’m considering doing a gender reveal announcement. I have no idea what to do. I have a 2 year old son, and am considering announcing with him wearing a big brother shirt holding a little brother onesie.

What did you do? Or if anyone has any ideas? Looking for low effort, a quick photo I can snap on my phone.

Thanks!