The impossible lost-property office

A notice for a fictional lost-property writing session.

At the next writing session, imagine that you work in a lost-property office where unusual objects are handed in. Your object could be a key that grows warm near the correct door or an umbrella that opens only indoors. Make its unusual features clear so that it could not be confused with an ordinary object.

Bring a catalogue entry describing the object and stating where it was found. On a separate card, write two questions that a member of staff should ask anyone who claims to own it. You may read your entry aloud, but you should not bring an actual object or a photograph.

Write down both pieces of writing each participant must bring.