Now we need a giant picture of ALL the 'sona's partying.
I don't want to crush your dreams or anything but I will have to inform you that while this would be awesome, it's also 99% impossible, especially at such short notice ://
I wouldn't say impossible, we could just plop them all together on a plain white background and they'd basically be partying together. That's not hard to do, and apparently the "party" is going to last a few days anyway. (Unless you mean ALL the 'sonas, because that would totally never happen)
This is where imagination steps in to improve on reality. Personally, I am picturing all the 'sonas in this video, doing their things (synchronized flamethrower display? parkour? cat training?) in place of skateboarding, samba parades, wheelchair athletics, etc. And everyone else on the Forum who doesn't have a 'sona, for good measure.
(Michael Franti & Spearhead, "Once a Day.")