Nothing is set in stone so the technicality below is a guidance:
Use a blueprint to create your sizes.
Caxixi Sizes are approximately made of a round base of 18 or 23 centimeters (7 or 9 inches) diameters or so.
Close to the edge, place 9 or 11 holes (never an even number).
While the straw lines up are cuts to approximately 60 to 70 cm plus 1 half size, you will need more than 3 meters of straw (previously soften in warm water) to complete a Caxixi.
Add to this at least 3 meters to weave it around.
There is at least an extra meter of thin straw for the handle
I leave a video on this workshop, but please vote below if you need more details.