Hey HBT, just wanted to show a little project i just finished. You can get the basic idea from the pictures but i took a nylon strap and some nylon string(found in the beading/hobby section of walmart) and sewed this up today. It took me about 2hours to make, if you had a sewing machine it would be much easier. It works really well so far, i will keep an eye on my stitching as a haul 5gal of water around the house. The commercial ones are not that expensive at about $9-$15, but i had some free time. This cost me about $4 to make.