Lucky the Leprechaun is the official mascot of the ... Lucky has a trademark bowler hat and shillelagh. This form of Lucky was designed by Red Auerbach’s brother Zang in the 1950s.

The Celtics have unveiled a new alternate logo that features a white silhouette of "Lucky the Leprechaun" against a green background. Lucky is depicted wearing a bowler hat, smoking a pipe and ...