Short version of my Snakes, exclusive for Commercial Subscribers!
STL and multicolor 3MF included (tested with Bambu Studio 1.8.4.51, PrusaSlicer 2.7.4, and OrcaSlicer 2.0.0).
No supports required, but I recommend setting a brim for the Cobra head, especially for multicolor prints. It's a long print and better to be safe.