To celebrate 100 years of McVitie's Chocolate Digestives, we turned Britain’s favourite teatime ritual into a playful nationwide challenge for National Biscuit Day.

Inspired by the six million biscuits lost to dodgy dunks every week, fans were invited to test their skills through an interactive DOOH experience, using hand-gesture haptics to mimic the perfect dunk without the dreaded snap.

With daily prizes, bonus rewards, a live dunkerboard and social sharing built in, McVitie's turned dunking into the nation’s newest sport.

Rekindling the timeless debate over the perfect dunk.