Pikachu
As a digital entity, Pikachu exists primarily in the immaterial realm, granting it theoretical immortality. The creature cannot be punctured, degraded by ultraviolet radiation, or consumed by household pets. However, this same intangibility means Pikachu's physical manifestations, plush toys, figurines, and trading cards, remain subject to the same entropic forces that govern all matter.
Pikachu merchandise has demonstrated variable durability. Premium collectibles housed in protective cases have maintained pristine condition for decades, whilst standard plush iterations show significant wear after merely 2-3 years of active child companionship. The digital Pikachu, meanwhile, persists indefinitely across save files and cloud storage.
Rubber Duck
The Rubber Duck's physical constitution represents a masterwork of functional design. Constructed from polyvinyl chloride or natural rubber compounds, the standard specimen resists water damage by its very nature, a feature that would seem obvious yet remains remarkable in its perfection for the duck's intended habitat.
Laboratory testing reveals that a quality rubber duck maintains structural integrity for 5-10 years of regular bathing use, with some specimens remaining serviceable for decades. The material exhibits excellent resistance to soap, shampoo, and the persistent manipulations of small children. Unlike Pikachu's physical forms, the duck contains no small parts, batteries, or delicate components vulnerable to aquatic environments.