Twin announcement ideas?

Kelly
This is our first pregnancy, and I am looking for some cute ideas for social media announcements. We are having twins which posting that is exciting enough already but a lot of my friends are doing really cute things. I'm just not crazy about ones with pumpkins because that's what I've seen a lot of people I know post lately. For the family we made cards that we're giving out at our Halloween party that say "no trick here, just a treat, our family is growing by 4 feet!" However we're planning on announcing on Facebook after Halloween. Any ideas are appreciated. Thanks so much!