“Some folks are flinging marshmallows and ping-pong balls at one another to simulate hail. … For a bit of aesthetic flair, a website offers a special manicure theme. ‘You won’t want to Pass-over these Ten Plagues Nail Decals!’ declares midrashmanicures.com. ‘These adorable frogs, flies, and locusts are bound to be a hit at your Seder.’ As for Elijah the prophet? Well, he just might show up.”