(For some reason or the other i stopped taking pictures half way through, but I'll try and explain what else I did.)
Step 1: Planning
Step 2: What you're gona need
1- 1 foot, 1/2 inch diameter bolt with two washers and a nut
1- 1/2 foot 5/16 inch diameter bolt with two washers and a nut
We also used a bunch of junk that I had lying around in my basement. You might need to purchase these items if you dont have them...
2- 25 lb. weights (from a benchpress)
Cloth for the sling pouch
Rope or chord of some type
A big washer
A finishing nail
A saw (a chop saw works best)
Like I said, we were wingin' this entire project so you might need to improvise here and there.