HOW TO MAKE A GLOB
The idea of a glob was inspired by Juan Carlos Santana's Medicine Ball Video. The ones he showed were smaller, but he may have large ones as well. Basically I took a balance ball and a cheap 2.50 large Wal-Mart Ball and added water. I first released the plug and got as much air out of the balls as possible. I then used gas siphon tubing to add water to the balls. I just let them set and fill. It took awhile! It might be possible to use a pressure device to fill them faster and fuller. In the end, the smaller Wal-mart ball weighted 50 pounds, and the large balance ball weighted 100 pounds. If they hold up, I plan to get a larger balance ball and shoot for 150!
They can basically be used the same as a sandbag. Almost any lift can be duplicated with them. Juan Carlos also grabs them with one hand and lifts them. This might decrease there life. It would however be an interesting grip exercise. It goes without saying, they are VERY awkward. In my opinion more awkward than a keg or sandbag. Just remember, like Juan said, you have to accept the fact that one day you are going to get VERY WET!
Happy lifting.