This week has served up a powerful reminder that fame in art may be long, but celebrity in politics is strictly ephemeral.

For decades, McDonald's was closely associated with a jovial red-haired clown who was first introduced as the fast food chain's mascot in 1963. But over the years Ronald McDonald, who donned ...

Or Froot Loops’ Toucan Sam? And where art thou, Uncle Ben? Ronald McDonald’s vanishing act has been traced to a spate of ...