Rubber Duck
The rubber duck exhibits a stoic resilience that commands respect from materials scientists and parents alike. Crafted from polyvinyl chloride or similar polymers, the typical specimen can endure decades of aquatic deployment with minimal degradation. Unlike organic materials, the rubber duck does not rot, rust, or suffer from fatigue in the mechanical sense. It can be dropped from considerable heights, stepped upon by distracted adults, and gnawed by teething infants without surrendering its essential form. The primary threats to rubber duck longevity are ultraviolet radiation, which gradually fades the characteristic yellow pigmentation, and the mysterious forces that cause bath toys to accumulate internal mould. With proper care, however, a rubber duck might outlive multiple generations of bathers, its squeaker perhaps failing whilst its spirit endures.
Basketball
The basketball, despite its more substantial construction, faces considerable durability challenges. Outdoor use subjects the leather or synthetic exterior to abrasion against concrete and asphalt, gradually eroding the surface texture essential for grip. The internal bladder requires periodic reinflation, as all basketballs slowly surrender their pneumatic integrity to the relentless laws of thermodynamics. Professional-grade specimens demand careful storage away from extreme temperatures and direct sunlight. The basketball's very purpose accelerates its demise: each bounce, each shot, each enthusiastic dribble extracts its toll upon the materials. A well-maintained basketball might serve faithfully for several years of regular use, but unlike its buoyant competitor, it cannot simply exist indefinitely in a state of passive readiness.