I have an ongoing project to make posts for mental_floss articles I wrote way back when that I do not have an archive for. Here's another one, from 2014.
Marshmallow Peeps are everywhere! The stores are full of them, and so are Easter baskets. Better stock up now if you use them as an art medium. Plenty of people do for the Peeps diorama competitions held each year. And every year I pick some of those best, centered around a theme for your entertainment. More and more of the dioramas feature internet themes and memes, social networking, and popular videos. See ten of them in this list I posted at mental_floss.