I wish I had saved the picture that I saw. It's been years ago, and I don't think I was as into squirreling interesting tidbits away as I am now. Anyways, the soap was a confetti type soap where the maker had stacked slices of scrap soap in a mold -- it looked kind of like a loaf of sliced bread. The colors were really pretty because many of the slices were jewel tones -- deep greens, dark burgundies, etc. The green slices were colored with the spirulina, and they had gotten utterly gross with slimy rancidity. The other not-green slices were fine. I'm sure it was embarrassing to the soaper for this to happen. I'm sure many soapers would have quietly tossed the soap in the trash bin and said nothing. I appreciated that the soaper was willing to share this cautionary tale so we could learn from his experience.