Well now I have 3 red balls out of 4. They just showed up in the sandboxes. All of them belong to families with 3-6 kids. The 4th with no ball only has one kid, but it is also a later family and still young. Maybe it shows up once you find one of them and then it is automatic with families with more than 1 kid. Just guessing here...

I just found a red ball.

Ive got one too now! So funny. It really bounces off the walls. You can place in your inventory too.

Ooooooooooooooooooooooooooooooooooooooooooooh
How do you get it?
I have been trying to find it for a loooooooooooooong time!

I Just found it!!!!!!!!!!!!!!!!! YAY!!!!!!!!!!!!!!!
Heh-heh-he
Who wants to play dodge ball?
LOL

how?? where?? what?? why?? lol no seriously where is it??????

It's an Easter egg, and each player must find it for themselves.

awwwww man! ok now im going to be clicking everywhere lol

I found my Firt two red balls last night!

I'm a clicking and a clicking and still no red ball for me grrrrrr any chance of any more clues??????????