Why is an empty search request on Google Play transformed in a search for "unicorns"?
This is the only Google service that allow you to make an empty search... to give you unicorns. Why?
Google is known for their sense of humor and this just seems to be another example of one of their Easter Eggs.
My guess is that when you do an empty search, you are searching for something that doesn't exist, so... why not unicorns?