I see a lot of slingers are using leather pouches or braided and woven pouches. One of the best slings I ever made had a pouch that would cinch shut like a purse. I made from two pieces of denim sewn together. The shape was classic ovel, I sewed the two long sides then turned it insideout for a clean looking seam. I then slid one cord through each open end inside the pouch. I would tie each cord to the opposite cord after they were pulled through the pouch. Once the cords were tied I sewed a sleave for cord to keep them  spread ( like a hooded sweatshirt). Just like a hood when you let go of the strings the pouch opens rigt up. It's a pain to make but can be used to throw anything. With the same pouch i've thrown a single marble,cobs of corn,softball, chunks of wood,and hand fulls of pea gravle(sounds like rain) anyone else ever try this. Biggest bonus is that you can actually run with a loaded stone the weight keeps it cinched I only once had it not open and that was tangled strings

I second the request for a picture!  Man, the number of times I have dumped my rock while walking through weeds...

Shouldn't "dork" be good at computers? I thought it was a prerequisite...