The shoe phone lives!
It's a sneaker version, but we'll take it
So even though we'd prefer that it come in the form of an oxford or loafer, we'd be happy to have a tennis shoe version like this Sports Illustrated collectible found by Red Ferret. Unfortunately, it's corded, which would definitely put a crimp in our sit-com spying missions. But for top-secret conversations in person, we at least have the "Cone of Silence."