This is a Staryu Christmas tree topper you can print flat/without supports. Each part connects to the other via pegs (also called keys) which you can see as the grey cuboid things in the second picture. Some of the pegs are already built into the parts but you'll need to print 6 of them separately. My parts fit together pretty snug so you shouldn't need to glue anything.
You'll still need some kind of topper holder, like the one here.
The “ring” (the part that hangs around Staryu's neck or leg or whatever) is very delicate. Please print and handle carefully.
I printed at 80mm/s. The lighting makes it look worse than it is, but I do recommend printing slower.
The author hasn't provided the model origin yet.
