According to the ICM, fecal matter from a small Yeti was collected by the Tom Slick-F. Kirk Johnson Snowman Expedition of 1959, and the museum has it on display. The Yeti is, essentially, the Himalayan version of Bigfoot and is often referred to as the Abominable Snowman.
Whether or not it’s actually the droppings of a Yeti, 60-year-old poop is always impressive.