In Taiwan, receipts aren’t just receipts – they’re a ticket to a government-run lottery. Most Gen Z donate their receipts, so their prize money goes to charity. But in the digital age, physical receipts have all but disappeared. To increase donations to RMHC, McDonald’s and Leo Burnett Taiwan created a series of downloadable wallpapers where each design is more than art – it’s a digital lottery ticket. Not only does this idea transform Taiwan’s receipt donation system, it makes it easy to do good in a digital world.