First of all, props to Higgs on Discord for doing it first (to my knowledge). You can buy that here - https://floatparts.com/
But printing it didn't quite work for me, so I made a simplified version. Check theirs if this isn't what you're looking for.
Print in TPU, I used Fiberlogy 40D. Scale if necesarry, outside should be pretty tight, inside touching, but not too much friction. Use some grease.
The author marked this model as their own original creation.