What has worked in the past include:
1. Competitions - these can be clan competitions, contests between rivals, contests to choose champions to go on a quest or just competitions to see who is the best in the area.
2. Investigations - Something has happened, the PCs try and work it out, missing all the "obvious" clues that the GM has cleverly provided until he has to point them in the right direction with fluorescent arrows.
3. Funfair/Circus - A funfair, circus or band of entertainers are in town for a few nights. What do the PCs do? Do they try out the rides? Do they try and compete in the contests and show off? Do they try and seduce the strange entertainers? What about the entertainers? Are they thieves, assassins, mystics, tricksters or just entertainers? What happens if someone runs away and joins them? What if something is stolen while they are here? Is it them or is it someone else?
4. Buried Treasure - Someone has a map or knows where treause is buried. Is it real or false? Will the PCs bite and get rich? What if the treasure belonged to someone else? What if it is an heirloom or cult treasure? What if someone else wnats the treasure? How good are the PCs are at hiding?
5. Get Rich Quick - Someone has a brilliant idea of how to get rich quick. Who does it hurt? How easy is it? Does it work? What are the consequences?
6. Lover Mine - Seduction is an art, but is never easy. A PC wants to seduce an NPC? Is the protential lover important? From a different cult/culture? Has another suitor? What does the PC have to do to win the target's heart? Quests, contests, showing off?
7. Doing the Impossible - Someone has set the PCs a set of tasks to perform. These tasks might seem impossible. Can the PCs do them? Where do they go? What about those who oppose the tasks? What happens if the PCs succeed?