The purpose of creating a student council vote with a polaroid-style poster is to engage and encourage students to participate in the voting process. The poster creates a fun and creative way for candidates to showcase themselves to potential voters while adding a personal touch. By using the polaroid style, it evokes a sense of nostalgia and authenticity that resonates with young voters. Ultimately, the goal is to increase voter turnout and school spirit by providing an enjoyable and memorable experience for all involved.