O2 "quacky races" by Agency Republic

The campaign, created by Agency Republic, lives at www.quackyraces.com, where users can choose from a selection of five ducks.

Each duck requires different amounts of love, sleep and food to be able to complete in the race and users can decide what the optimum level of care is to make their duck travel the fastest.

The person with the fastest duck will win two round-the-world tickets and spending money.