Hi Cecilia, like you idea. My german health care insurance last year launched a campain that may be of inspiration to you: people who rode their bike to work for a least a certain number of days over a 3 months period could partecipate to win a price. Plus, groups could register and people could find other member in their city to go for rides together (like a car sharing sort of bike riding). Technology also played a role: on a website people had to log in each day to confirm that they rode their bike to work. By doing so you also accessed short and easily applicable information on the benefits of biking, walking ect.
Hi Ivellisse, great idea. Maybe a project you could look at is "hellofresh" at https://www.hellofresh.com The service provides on a website healthy recipes and people can order the box of fresh ingredients along with the recipe. The challenge might be in the pricing of the service. Another service that might be to interest to you is the Veggie Box (http://www.diegemuesekiste.de) that is popular in my city (I live in Germany, in Darmstadt). It is possible to order organic vegetables and fruits to be delivered home and the service is available as ongoing subscription. This way the truck delivers each week the box (and leaves it at your door so you don´t need to actually be home waiting for the truck) and makes sure people don´t ran out of fresh food. Again, the network of farmers is crucial to make sure the service is affordable.