Lunchtime in Campus Martius Park is about to get even more fun. Come hang out with Credit Karma and friends at Operation Hope. Look for the white and blue Credit Karma machines which dispense mystery prize boxes. What awesome item will be in your prize box? See you there...and good luck! *Every time someone uses a machine, Credit Karma will donate $8.50 to global financial dignity and economic empowerment nonprofitOperation HOPE. Operation Hope recently launched the Detroit Uplift 2020 initiative in collaboration with the City of Detroit.