star-shaped connector 3d model

Design a highly detailed architectural structure or object with surface features, recesses, corners, and edges specifically crafted so that NeoSander's eight sanding head shapes—Pointed Tip, Flat (Slim), Flat (Medium), Flat (Large), Half-Cylinder, Arc, Acute Angle, and Right Angle—can each reach and work effectively. Ensure the geometry, spacing, and proportions of every detail accommodate the exact shape and size of each sanding head, including narrow slots, flat surfaces, curves, acute and right angles. Emphasize realistic materials and textures, clear accessibility for sanding, and a coherent, visually interesting design that demonstrates functional compatibility with all eight sanding heads.