Pomodoro (see The Pomodoro Technique Explained) is a discipline that calls for concentrating on a task for 25 minutes, followed by a short break. The name comes from a kitchen timer in the shape of a tomato that the originator happened to use.
Suppose you wanted to add this to a Tinderbox document. How would you go about making a note that works like a pomodoro timer?
(No real need, but I thought this might be an amusing community project and it might surface features that Tinderbox needs…)