So I make a ditty bag with a simple drawstring top for toys, and then this fits inside a larger bag for clothes.. I think this first attempt had the bag too fat and not tall enough.
Not sure how to close off the duffel-type bag, probably use some old sheet rope through some grommets. I also plan to waterproof the sewing with backpacking tent seam sealer.
I need to figure out an better way to close the top of the duffel so its vaguely waterproof and easy to make.