Melting Mooka, introduced to us by Zentangle's Project Pack #6 , is a wonderful version of Mooka that can be used to as a string to divide a tile into smaller spaces.
These internal sections, when filled with other tangles, result in a tile that gives the impression of stained glass windows.
This was a fun, playful exercise!
Zentangle drawn on Strathmore Vellum Bristol using a black, Micron pen. Shading done with graphite pencil.