Here’s how I made a snake. It’s not the best method, but it works.
Use 8-sided circles to make a spiral, then draw the neck with line segments. Move the points around to create bends in the lower spiral to get a snake shape.
Use follow-me, taper the tail with the scale tool, and extrude a few times to make the head.
Texture it.
Subdivide it. I used Artisan organic toolset.