McDonald's announced that Grimace's uncle is traveling to America from his home in Sham Rock, Ireland, to reunite with Grimace and to celebrate the 50th anniversary of the original Shamrock Shake ...

is the rarely seen uncle of the purple monster known as Grimace. The Irish spin on the character was first introduced in 1975 but “hasn’t been seen in decades,” according to press materials.

McDonald’s sparked a mix of excitement and frustration this week after unveiling limited-edition ‘Grimace’ tumblers—available only in Australia. The purple-and-yellow insulated cups ...