Idea: The fab key.
Macintosh keyboards are typeset in VAG Rounded, a font which happens to have very similar “t” and “f” letterforms. Except for the curve of the “f” they are identical.
The word “tab” on the keyboard is really small. The tallest letter — “b” — is only 3 millimeters tall. Unless you get your eyes really close to the key, it can be hard to see the details of the individual letters.
So I propose that someone should sell novelty replacement keycaps that say “fab” instead of “tab.” It’s pretty easy to swap out keycaps, and you could do it yourself at home in minutes.
Why? Because working at a computer can get monotonous and boring, and this would give you a little secret that only you know, and you could giggle about it in your head every time you press it. Sure, someone else might notice your fab key, but they probably wouldn’t because the letters are so small. And if they do notice, you’ll become known as the person with the quirky keyboard that says “fab” and I don’t think that’s such a bad thing.
But maybe you don’t have a Mac, and your tab key has the more common capital “T” that doesn’t resemble an “F” at all. Well, then get a fab key for a Mac-using friend. They make excellent gifts for Beatles fans, people who work at Farnborough Airport, those in the Bolivian Air Force (Fuerza Aérea Boliviana), or anyone named Fabrizio.