@kali66 they're already dried, like seashells. I can buy them in local craft stores, they are not expensive at all (average $1-3/each depending on size)
Beautiful! I grew up on a small island so we used to pick up sea urchin and admire them when they were already dried out, and avoid their prickles when they were still alive. Some people ate them right on the beach but I prefer eating them in a sushi restaurant.
