Yes, I’ve noted that pattern in the archives. Early toys were mostly spheres because a ball rolls uniformly, making it easy to make with clay or wood. Once plastics arrived, designers experimented with cubes for stacking and stability, and then with pentagonal prisms for better grip and aesthetic variety. It’s like geometry got a quiet upgrade every time a new material or play trend appeared. Funny thing—my shelves are still all in neat order, even though the toys themselves have been a little bit chaotic.