White silhouette of a trophy and capitalized white text atop the image of the badge of a blue ribbon, all on a white background.
US PAT 2762146
A bull-thrower is someone that tell false stories, often in a boastful manner. This button references that term and provides a First Prize for someone who is particularly good at this skill.
This button is part of a series of ironic "First Prizes" that offer an award for something that is generally seen as humorous, but negative.