Start with a central polygon (like a hexagon). To create the spiral effect, draw a line from one vertex, move forward by a set length, turn at a fixed angle (e.g., 60° for a hexagon), and then increase the next line's length slightly. Materials: You can use a Spirograph Drawing Set
If you meant a "Paragon" spiral staircase, "putting together a piece" refers to a weekend DIY project. Spiral puzzle by Hanayama. Simple solution. Spiralagon
One piece usually has a brand name (like "Hanayama") on it; this often acts as the starting or ending point for assembly. Start with a central polygon (like a hexagon)