In today's photo, Myrtle Carroll makes Easter bunnies at Knott's Berry Farm's Candy Kitchen in 1957. Click the photo to enlarge it and see all the different varieties of rabbits, chicks, baskets, etc.
Today, of course, they wear sanitary disposable gloves for this kind of work. But in 1957, the bits of gunk under employees' fingernails added essential minerals to children's diets and helped build character. Of course, I still prefer Myrtle's bunnies to cheap candy imported from China. An hour after you ingest Chinese fingernail gunk, you're already hungry again.