I seem to keep accumulating more vintage potholder dresses even though I have plenty. I think there are so many available because they were saved instead of being used. They are definitely not as practical for holding hot pans as are other shapes of potholders.
I like to collect vintage potholder pattern books as well as the potholders themselves. There are patterns for so many different shapes of potholders. It seems like it is easier to find the books than the potholders they show. However, the opposite is true with regard to the dresses. I haven't been able to find any vintage crochet books with potholder dress patterns.