Just a thought. I don't use purses, have only own one in my whole life but if someone took the time to make me one I would find some way to use it. It may not be used as a purse per say but I would find some thing to do with it, like carrying my quilting blocks around or other small projects. Even storing my extra spools of thread would be a great idea but of course they don't sew. The point is they should think outside the box and be grateful you spent your time making them something.
Their response to your hard work was totally unacceptable and I think I would let them know how much it hurt your feelings. It just wasn't right for them to do that.