Klein bottle irregular holes weave

Of course, a regular old Klein bottle cannot be missing in my collection of self-intersecting surfaces.
The used parametrization is piecewise toridoral.

The irregular hole pattern has been calculated by simulating a Gray-Scott reaction diffusion process on the surface.
The algorithm has been modified so that at the sites of self-intersection, the different parts of the surface do not touch but instead weave through each other's holes.

Check out the color version, also available in my shop.