All of the objects in this list are triangular in shape, have dimensional proportions consistent with that of an equilateral triangle based structure or have been specifically designed to work well with certain types of triangular objects.
These objects can be found in other lists, but are grouped here by shape or structure for your convenience.
The following special objects in this category are restricted for use only by citizens who have been given the "Special Objects" privilege by the world's caretaker: