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There are plenty of models online for wands, and star wands, but I wanted one that was easy to print and didn't need supports. The main barrel of the wand is flattened on the top and the bottom to maximise first layer adhesion, and there is no difference in height between the barrel and the star.

There are two versions, one with stripes (yellow in the photo) and one plain (green in the photo). The striped one is designed to have overhangs so short they should work on any printer, but for maximum print-ability I have also included a plain one. Designed on TinkerCAD (link).

If too large for your bed, try scaling XY on your slicer, but be careful scaling Z so as not to make it too flimsy.

Recommend 4 vertical and 5 top/bottom walls. I used 20% rectilinear infill. Took 46mins on my v2.4 printing white ABS.