Above is a physical model of Knotted Kelp
, which is described in
my Echinodermania paper
wasn't fabricated at the time of printing.
This top view rendering shows how it
is based on a trefoil knot.
Here is another view of the physical
model. Notice it is based on an unwrapping of the (7,6,6) hyperbolic
Here is a model of the Pavilion
from that same paper.
I colored it gradations of brown, red, and green as an experiment.