I present THE ASYMMETRON: 250 identical 3D‑printed tetrahedral bricks (14x14x11mm, Black PLA). Each brick costs you less than 15 cents and has 4 triangular faces—2 male, 2 female—and no face repeats its perpendicular axis, making every single brick truly non‑planar. My connectors are deliberately non‑coplanar. On the female side, three very low‑height triangles are extruded parallel to their faces, with a small pin at the center of each wall and an outer edge that guides the male pin into a precise, self‑aligning lock. Important: I designed the print‑in‑place supports manually (no slicer automation). You will need to remove them yourself upon receipt—they break away cleanly, leaving smooth mating surfaces. Why tetrahedra? Because the triangle is the strongest shape known for millennia. With these bricks, you build lightweight, open space‑frames and incredible geometries using far fewer pieces than traditional solid boxes. This is a completely new kind of construction brick, born from my curiosity and my drive to innovate. Let's build the unbuildable!!