Batman has the 'bat signal' which is a modified searchlight with a stylized symbol of a bat attached to the light so that it projects a large Bat emblem in the sky over Gotham.
But, Mike Frerichs - The so-called "Gaffeman" has a different symbol. It is a stylized symbol of his favorite headgear: earmuffs.
When you see earmuffs in the sky, you know what that means: watch out! Because...Mike Frerichs, candidate for Illinois Treasurer, and The Gaffeman is about to appear. Blunders and mistakes and miscalculations are SURE to follow.