Thanks to Joel/Charely Potter
Following the feast, your Prefects have led you up to the Gryffindor tower, given you the password, and opened up to the Common Room. Where – IT HAS BEEN TRANSFORMED!

A large banner dangles from the ceiling

Quote:

START OF TERM PARTY! ROAR ROAR GRYFFINDOR!

The couches and chairs have all been transformed into a variety of things; haystack, car shell, brick walls etc. (You decide what else there is!). Scattered around the room are buckets of what looks to be water balloons. Except they're not full of water... they're full of PAINT!

There are no set teams, but the colour of the paint is all a variety of reds. Light reds, pinks, maroons etc. Will you go and throw the paint balloons at your friends or someone else?