This is my designed piece that is supposed to be used on a T-connector for a 3/4" PVC pipe. It slides on and allows you to rotate Zero's pillowcase/dowel support to get him to float correctly (follow my design in this video https://www.youtube.com/watch?v=ZsVDesGFevc). Used in-turn with dowels, it works really well and makes Zero float really nicely.

Make sure to use a nice white PLA if you print one!