Mickey Mouse
Since his debut in Steamboat Willie in 1928, Mickey Mouse has maintained continuous cultural relevance for nearly a century. This is no small feat in an industry where characters routinely fade into obscurity within a decade. Disney has accomplished this through constant reinvention, strategic nostalgia, and the aggressive acquisition of competitors. The mouse has survived the Great Depression, World War II, the collapse of traditional animation, and the rise of digital media. His image has been updated seventeen times, each iteration carefully calibrated to remain appealing without alienating those attached to earlier versions.
Volcano
Volcanoes have existed for approximately 4.5 billion years, predating not only Mickey Mouse but also the emergence of complex life on Earth. The oldest active volcano, Mount Etna, has been erupting for over 500,000 years and shows no signs of retiring. In geological terms, Mickey Mouse has existed for approximately 0.000002% of volcanic history. Volcanoes will continue to shape planetary surfaces long after the Disney corporation has faded into historical footnote, their activities governed by tectonic forces that operate on timescales utterly incomprehensible to cartoon characters.