In case you were wondering, this is what an organic potato looks like when it has gone bad. Apparently conventionally grown potatoes don’t decay nearly so beautifully. Yet another advantage for organic. Mario Ambrosino, an agricultural researcher, originally gave me this potato and some others. This purple beauty was living life to its fullest in my fridge, hiding out in a region reserved for healthy, low-calorie foods. I unearthed it just in time for it to enjoy an unlikely late-life stint as a photographer’s model.