Like many states, Oregon has TWO GREAT colleges in University of Oregon in Eugene and Oregon State University in Corvallis. Jacque, aka Grandma Platypus has a number of grand children who are either OSU Beavers or U of O Ducks.
So Jacque feels torn to support both colleges and the grand kids have taken to calling her "Grandma Platypus", thus the front of her tee shirt.