Alex Kinon made the final turn and thrust his arms out as if flying like a plane. Then he performed a slow pirouette. Finally, he flexed his biceps. But that stretch run toward the finish line was nothing but a diversion. The real entertainment was covering his body for the seventh annual Ugly Christmas Sweater 5K on Dec. 14.

“You know, you walk into Walmart or other stores, and you just kind of find these things hanging around,” said the Manahawkin resident, sporting a bright-red leisure suit…