Inspiration for art can be found anywhere. This balloon Panzer tank seems to be exactly replicated based on the quote “If stripped of all it’s glory, war is nothing but hot air” - by General Eisenhower, famous American WWII commander.
Sometimes it’s hard to understand why an artist would try to make statement art by using such an innocuous form like a toy balloon due to it’s obvious appeal to the kids. Then again, I don’t understand most art anyway. Or maybe this isn’t art. Maybe the photos are reversed and the kids were blowing up the balloons and a tank appeared.