It's a "liquid condom" for women called the Nanometer-silver Cryptomorphic Condom (or, if you're in amorous embrace and want to get your paws on it in a hurry, "NCC"). It looks like a can of silly string, except that when the long nozzle is inserted into a woman's vagina, out shoots an "antiseptic foam spray" that's supposed to form a "physical membrane" that blocks sperm, prevents infection and -- bonus! -- aids in lubrication.
Rebecca Traister writes for Salon. She is the author of "Big Girls Don't Cry: The Election that Changed Everything for American Women" (Free Press). Follow @rtraister on Twitter.