This design is also available on cults3D: Multipoint Star

This is a 26 point star. The points clip together without glue. As the star is completely hollow it can be easily illuminated. For a complete star you need to print 18 of the long tips and 8 of the short ones. The STLs in the download are sized to produce a ca. 20cm diameter star.

Assembly is nothing for the impatient, as you close up the star it gets harder to clip together the pieces. What helps is a pair of angled tweezers/pliers. Also, if you clip/unclip each interface once before, it goes together more easily the second time.

The assembly starts with a ring of four of the long tips. Then add a half sphere to one side by alternating between short and long tips. This pattern then gets mirrored to the opposite side. Check the pictures for some hints.

Printing

The STLs in the download are solid and should be printed in "Vase Mode". In Slic3r/PrusaSlicer you have to switch on "Spiral Vase" in "Print Settings / Layers and Perimeters" in Cura activate "Spiralize Outer Contour" under "Special Modes".

This leaves you with a single walled print without a seam, ideal for illumination. And last but not least it prints fast.

Challenge

This star should be printable as one object with living hinges between the points that allow it to be folded up. I have created the respective STL but have not tested it yet. Obviously it can't be printed in vase mode anymore. So print it with no top/bottom, no infill and one wall. Looking at it in the slicer I suspect that there will be issues with stringing where four corner of the tips meet, creating binding that effectively disables the hinge. But whomever is up for the challenge might still get it to work.

Happy Making.