In a nutshell:

Magic Loop and Tubular CO 38 sts (to make me feel super professional)
Made up own cable pattern - it’s not hard.
Mirrored cross overs.
They’re not purple.
But they’re soft.

Dying to read the longwinded version about how I think the Tubular Cast on may the answer to the world’s problems and how I invented a new cast off? Your wish is my command.