Kids throwing wicked Wiffle Ball curves
http://www.huffingtonpost.com/2011/05/17/wiffle-ball-curve-balls-video_n_863267.html
https://www.youtube.com/watch?v=fh-oZbSJeG8
Definitely try this at home.
* This story was originally published as a post from the blog "The Slice." Read all stories from this blog