Answer: Make a stool with three legs!
We photographed this stool on our kitchen's tiled floor that inspired our tangle Florz. We teach Florz in our Zentangle Kit. It's one of many tangles which resonates from an underlying grid - much like the tangle we call Knightsbridge.
Of course, this stool would not be complete without Maria adding something special -- in this case, a touch of Knightsbridge to one of the legs.
[Click images to enlarge]