Digging claws for gardening. They work well in loamy, silty and sandy soils, less well in wet clay. They fit tight to the hex bar that serves as a handle, but you'll still want to use glue or a print pen to space and anchor them accordingly.
Printed with 5 perimeters, 4 top/bottom layers @235 degrees. Used supports, didn't seem to need it when I was removing them.