An interesting idea to explore is to have a gift generator for friends and colleagues. You enter the Facebook link of your friend, the unique thing you know about his/her interests, the occasion, then your budget of course, and the app generate few ideas — as original as possible. You select some and dismiss some others. The app uses these inputs to improve its suggestions for someone else who might have the same type of friends and the same preferences, someone else from your kind of bubble. Maybe it exists already?