How to make Russian Juggling Balls

I just thought I'd put a video up about making quality juggling balls for a super cheap price. You'll need a hot glue gun, a drill with drill bit, a scale, a Dremel, and some salt or sand. You can order the balls directly from Whiffle. They ship really quickly.
gballz.com
Here's a link to the Baseball sized Whiffle Balls. shop.ctstore.c...
I put 100 to 105 grams into the baseball sized whiffle balls. And 140 grams into the softball sized balls. The softball sized are rad for stage but they are huge, about 4 inches.