My wife picked one up for me at Walmart the week we went to KY. The same week we got the remnants of Hurricane Dennis. Needless to say, we got some pretty heavy rains and the Chair-brella by Ozark Mountain Trail held up very well. A search comes up with some options, but folks are wanting $15.00 for these things. Apparently, they're a useful tool in photography as well. I never could find one listed at the Walmart or Sam's website. Yet I believe that they are made/marketed for Walmart.
Rick