The city had selected a design that honored police and fire fighters, but it was pulled after some argued gang symbols were visible in hands on the design. The artist, 15-year-old Herbie Pulgar, tearfully denied he incorporated gang symbols.
City Clerk Susana Mendoza then selected the design of the runner-up, Caitlin Henehan.
But on Saturday, Mendoza announced that her family asked that the city not use her art work, saying the publicity turned "sour" a "happy accomplishment in her life."
Mendoza said the sticker would be designed in-house and the city will decide whether to continue the contest. All finalists from this year's contest will keep their prizes.
"I don't want to put any other child through what our entrants this year have gone through," Mendoza said.