Oh my God, I loved Madballs. They were completely pointless back in the 80's, and they were...COMPLETELY...AWESOME!!!
What were they? Odd looking balls. What did they do? Ball-stuff. That was...pretty much it. But...they looked AWESOME! So, take THAT, stupid modern balls...like that lame gravity defying one. So dumb.
The commercial says that they were "freaky fun," and yeah...I tend to agree. They can also break basement windows pretty easily as well.
Finished Size: about 1.5" x 1.5"