I have it set up to run a project where a subreddit has control over the watering of a live plant in my apartment. The pi runs a reddit bot that reads the votes, and can switch on a pump to water. It also collects data about sunlight, moisture, temp and humidity to help inform the decision about watering. Despite many people's preconceptions about the goodness of the internet, I must admit that they do a wonderful job caring for my plant!

website: https://www.idealzanussiservice.com

subreddit w/ voting: https://www.idealzanussiservice.com/blog/%D8%B5%D9%8A%D8%A7%...