Lately I have been investigating "general physical preparedness" (GPP). Specifically sandbag training and Bulgarian Training bags. I looked around on the net and found a few tutorials on how to make your own implements.
Last night I made my first sandbag from an old canvas laundry bag. Actually I used pea gravel. It ended up being about 80 pounds.
Let the training begin!
[edit 11/11/2009]
The training tire/bag is 30lbs. The smaller sandbag is 65lbs. The heavier sandbag is 100lbs. I also got some chain and rope attached to old fence posts (to drag/pull). Finally, I have an old tire (free from an auto shop) and bought a 10lb. sledgehammer. I need to find a larger tractor tire to flip and I will almost be set...for now!