Those are mostly floursack flats. One of 'em I folded into quarters and pleated diagonally, one was folded into quarters diagonally & pleated, one I stitched a star into, and pulled p the threads to section that part off, and then the classic spiral and one was just pulled up from the center. The prefold I did with a spiral, but it didn't turn out too well. My technique has since improved

I think you could do maybe 5 prefolds with a 5-shirt tie-dye kit. PF's definitely suck up a lot of dye, though, so you might want to get a bigger kit from Dharma if you want to do a bunch.