Here are a couple of ideas for quick short-term group freeform roleplays. They're still in the planning stages but I think they have potential.
Bull or Bare
A sudden ice storm shuts down DFW Airport and six stranded travelers find themselves at the Airport Hilton with only one suite to share between them. Stuck inside with only the copious and comped minibar and each other's company to provide solace, one suggests a game of Bull or Bare, a storytelling game where the only thing more enticing than the tales are the forfeits. Strangers become friends, friends become lovers, and anything is possible.
Constance Meadows (Idlewyld) - Flight Attendant
Derrick Steele (Zeth) - Businessman
Paige Larson (Marjolaine) - Freelance Book Editor
The Pi Nu Sigma fraternity is holding its annual PSP (Progressive Strip Party.) Every half-hour, the bells chime and the guests donate another article of clothing for charity right there on the floor. Did your character come just out of curiosity, or something more? Will he or she leave early, or stay for the full monty? And what happens after?