Oh yay!!! I found a website that sells my bags, in assorted sizes!
The Box Depot
Clear Vinyl Bags(Pouches)(Zipper Bags)
3.2 Gauge with clear sewn seams, white nylon zipper around top
Sizes:
9" x 12" x 2"
9" x 12' x 3"
9" x 12" x 4"
9" x 11" x 1"
9-1/2" x 11-1/2" x 1-1/4"
9-1/2" x 11-1/2" x 2''
9-1/2" x 11-1/2" x 3"
9-1/2" x 11-1/2" x 4"
11-1/4" x 8-1/2" x 1-1/2"
11-1/4" x 8-1/2" x 2"
11-1/4" x 8-1/2" x 3"
11-1/4" x 8-1/2" x 4"
And larger sizes with the 15" dimension on one side. Check the website.
They seem to be sold in sets only. (set of 10....$5-$7)
Not sure about the strength of 3.2 Gauge vinyl. But we're not using these bags to hold a dozen croquet balls!
I wouldn't purchase a bag that is less than 3-4" in fatness.
So the sizes above that are bolded are the sizes that I'd buy.
Anyway, I can't get over the cheap price!