People had mentioned doing some prompted writing for fun, so here are three prompts. My suggestion would be that if you use one of the prompts, provide a prompt of your own from the same category so we never run out. 

Person

In 600 words, describe a Castillian priest of the Vatacine Church who is growing more and more concerned with the direction the Inquisition is taking. A successful description will not only depict the integrity and conscience of a devout servant of Theus, but will also be a useful tool for a GM seeking to integrate the character into a session of 7th Sea. Consider how you might get your players invested in such a character, and feel free to be direct with examples and suggestions to the GM.

Place

In 600 words, describe a pirates' den located in the ruins of a native structure in the New World. A successful description will create an air of mystery, danger, excitement, and antiquity without casting the local people as magical natives and the current residents as model heroes or deplorable naves. Ensure that your work is useful to the GM and rich with opportunities for players to engage with the setting during an actual session of 7th Sea.
 

Thing

In 600 words, describe a creature of Eisen folklore rumored to dwell near a town at the edge of the Schwartzen Walden. A successful description will evoke both primal fear and mundane reality of creatures found in folk lore, describe the effect this creature's existence has on life in the nearby town, and will also be a useful tool for a GM seeking to integrate the creature into a session of 7th Sea. Consider how you might get your players interested in such a creature, and feel free to be direct with examples and suggestions to the GM.