  We introduce a simple and concrete way of visualizing in three dimensions a
"flat" Klein bottle -- one whose local intrinsic geometry is the same as that
of a flat plane -- which preserves most its topological and geometric
structure. Concretely, the flatness property means that a small patch of the
surface around any point can be flattened to a patch of the plane without
stretching or compressing. Thus we can use the medium of curved-crease origami
with inelastic film to make a model which, except for its self-intersections,
necessarily has the flatness property, even along its folded edges. As such,
the sculpture presented here illustrates both the flatness, and, through its
coloring, the non-orientability of a Klein bottle.
