The cheapest lamp from Target is cheap, with a shade that can get damaged in a move. This replacement shade is not much better.

Sliced in vase mode with 1.799mm external perimeter thickness, and fuzzy skin enabled.

Printed on a mk3s+ with a .6mm nozzle in white PLA and stopped early(!).

For a standard .4mm nozzle, set Print Settings>Advanced>Extrusion width>External perimeters to 1.199, i.e. slightly less than 3x the nozzle diameter.