I made some up this morning as I went through my ritual cleaning. :D
1. Harry got into Seamus' firewhiskey again. And it's time for dinner. What will happen?
2. Harry finds Draco's stuffed animal from childhood. Or vice versa.
3. "I, unlike you, am a prefect, so I, unlike you, am allowed to use the prefect bathroom. What are you doing here, Potter?"
4. Base it on these lines from Keane's song "Somewhere Only We Know": This could be the end of everything. So why don't we go somewhere only we know?
5. Harry or Draco go to Neville or Blaise or both for relationship advice.
6. Did you know there's a locker in the Slytherin/Gryffindor locker room that's big enough to hide a seventeen year old boy?
I may or may not be back with more. We shall see.
~Cheers and H/D love :D