I created these two portable yarn cake holders - a double horizontal yarn cake holder and a single table mounted version.
The item on the left can be moved around like a light can and clamps to any surface a ball winder can clamp.
I used these prior to upgrading to an actual cone winder which I feel is a better way to control yarn tension. See my YARN WINDER page.
Video of this double holder in use
INSTAGRAM: REF1