Muggles beware: You're gonna want to attempt this DIY version of the Weasley's location clock from Harry Potter.
In the movies, the Weasleys' clock uses hands and faces to show where every member of the family is at a given time: "School," "Work," "Mortal Peril," etc.
Imgur user tbornottb, a college student, decided to make a real-life version of the clock for his own parents. He crafted a DIY replica that actually works: