This pattern comes with the 2022 Miniball Advent Calendar. It is a cowl but can be extended to a scarf by repeating the motifs as many times as you want. Each day you get a new colour and a new part of the pattern.

The cowl is knit in the round and starts with a provisional cast on that you can then graft to the live stitches at the end to make a seamless cowl, or you can just cast on normally and seam the ends together.
You are only ever using two colours per row. Ends can be hidden inside - just knot them and leave them hanging!