Context
Mars asked Amazon for one thing: more sales in the seasonal peaks. The catch: margins on a single chocolate bar are too slim, so chocolate is hard to sell, and gifting it had never been popular on the platform. But what if you could send a lot of chocolate to show your love?

The greeting card configurator
What’s a gift without a greeting card, especially in the UK? We at Amazon BIL designed a make your greeting card flow, and I built it as a configurator. To avoid GDPR issues, everything happens on the user’s device: the card is rendered as a PNG locally and shared with the native share APIs.
Beyond the code, the micro-interactions and animations were mine, and so was the decision to build it as a reusable component instead of a one-off.
A theme for every season
The page changes theme for every main season, so the same campaign could come back each year with a new look.
Outcome
- More than 10,000 cards created, each tied to a sale
- The campaign was reused for two years, changing theme
- The configurator was picked up by at least 5 other advertisers the following year, from phones to Barbies with accessories



