As an attention-grabbing ploy.
Have a group of people all with flaming red hair for hire. If you have an event and want to get some attention at the event and from the media, hire them to attend. The bigger the group, the more they will stand out.
If you walk almost anywhere, you will see plaques celebrating and informing you of interesting people and facts regarding many places (buildings, parks, etc.) There are much more of these than you see on these plaques and many a place where there is no plaque even though it has an interesting history.
An augmented reality app that when pointed at such a place gives you a list of all the interesting things that happened. Famous people who lived there, historical events, etc. You just point it at a building or even a few buildings, or a whole park, and see the list pops up on the screen beside the place you point at. You can them click on any of these to get many more details and the story.
You already have a character that is both famous, and his multiple facets are well known from the media.
Write a fictional novel around that character, or even a series of books with their own world, mixing known facts, background and stories with fictional ones. Just like historical fiction but based on known business leaders.
It looks like the research in the past ten to twenty years has shown that carbohydrates are the main culprit in many health problems.
An app that lets you input the food you eat by searching, selecting from a list or taking a picture and letting the app recognize the food. The app keeps track of the food, and it’s carbohydrate content (and as a bonus also of other nutrients needed) and tells you how much you consumed so far today. This way you can control your intake much better.
If you have an artist your work you admire, it might be interesting to know what he think are good books by or on other artists.
Publish daily lists of books recommended by an artist. Offer readers the option to search for artists and find who recommended their book or a book about them, and also find what recommendations that artist made. Have an option for the readers to get a daily email with the new lists.