Discourse on a given topic. Stun us with poetry, poetic prose or pap. Carve the writer's block in a giant cod sculpture.
Someone donates a topic to write about. Let's say it's fruit. Whatever hits you first - the concept of original sin, cherryade, a childhood memory, an embarrassing moment, a kiss, a pelvic floor exercise - write about that. Form is not important but you must write legibly (try to use good spelling, grammar and punctuation. There's no shame in using a dictionary).
_WriteAboutNow is an exercise in rich creative response. Other suchlike marveilleuse communities include: same_oh 10_words excuse_me___