This is a spiral sculpture that can used as a trophy or an award for a gala event.
The original version (2) had holes where the two elements fit together. The new versions (4) fixed that problem by fusing the two pieces together for an airtight solution.
Since the photos were taken I have applied clear epoxy. This can give it a high gloss finish and eliminate laying lines - careful this stuff can set really quickly depending the glue you get. There is also a variety designed for 3D prints.
This does not need supports. Although the bottom facing surface ended up a bit rough. I printed it out at 14% infill and 4 shells at the finest resolution. It is recommended that you print this out at the maximum size for your printer (scale it to your needs).
The larger print in the photo is from an extended printer with a larger print volume - stopped the print mid way and changed colours.