The corners of three intersecting golden rectangles make an icosahedron. What does that look like? Print this thing and find out!
Generate support material: on
Enforce support material for the first: 40 layers
XY separation: 5%
To reduce shaking:
Speed->Acceleration Control->Infill: 375 mm/s^2
Also, if your printer has this feature, you may want to reduce the overall print speed.
Sand and paint to your preference.