Comic Wow, Oops, Boom and Wham sound effects. Back to school sale icons. Studies after the holidays signs. Pencil symbol. Zap speech bubbles in pop art. Vector Shutterstock Image - Comic Wow, Oops, Boom and Wham sound effects. Back to school sale icons. Studies after the holidays signs. Pencil symbol. Zap speech bubbles in pop art. Vector - ID: 610149218