Gender reveal cupcake ideas?

Question

Ladies Im 5 months pregnant, and I won’t get my anatomy scan until dec 30th. I want to do marble cupcakes with vanilla buttercream frosting but the inside will reveal the gender.
Any ideas for the filling?

Answer

Take a little bit out of the center and either put colored frosting inside or sprinkles.

Answer

I did a gender reveal cupcake for my s/o... Didnt remove center.. Just piped through the top and covered with buttercream. They were delicious. 
Get the color deep enough so that it doesn't mix with the top color or make top color alternating colors or different colors to hide what's inside.

Answer

These were mine 😀 put blue frosting in the middle