Printed using Cura's SPiralize Outer Contour setting (aka Vase mode). I've never used this print setting before so it was an interesting experiment. The print came out perfect, although I'd have to say, I much prefer my original solid print, both because, it looks more interesting and because it has a satisfyingly sold feel to it.
print of file: Sphere_tube_03_SPiralize_Outer_Contour.stl
0.1 mm layers, 0.4 nozzle