Steve,
I couldn't get the link to work. It took me to YouTube, but not the specific juggling video.
I often joke that the one thing I learned while in college was how to juggle. I can do three things at once, I can also do two things at once only using one hand. If I really want to get tricky, I can start with 3 things in 2 hands and then shift to 2 things in one hand and then shift back to 3 again. I can also walk around while juggling.
Unfortunately I have a hard time with objects that are not alike in size and weight. My favorite thing to juggle is billiard balls or the hard rubber lacrosse balls. Their weight and size makes them pretty easy for me.