This Listerine flipbook campaign, created by JWT Hong Kong, goes down as one of the most creative yet simple ways to encourage people to buy mouthwash.

The brand created a flipbook featuring a beautiful and seductive woman and infused the pages with an onion smell, which wafted out at users as they flipped through the book's pages. Attached at the end of the book was a coupon for a bottle of Listerine. Brand representatives handed out the Listerine Flipbook to passersby on a busy street in Hong Kong (you can watch the funny reactions here in this video). According to Adweek, the campaign was a tremendous success, with the redemption rate for the coupon reaching 66 percent!