It required magnets:
5x10x1.5 or
2x 5x5x1.5
But 1x5x5x1.5 will also do.
There is also an optional cap. I didn't have to use any glue, but depending on the printer's precision, you may need to add a small drop on the cap to keep the magnets in place.
No support, but the brim may be welcome for the cap.
The author marked this model as their own original creation.