We hold a big not in use room surrounded by the house ...what should i do next to it ? i want to do something fun ....im 18 yrs old ...some of...

i want to do something fun ....im 18 yrs old ...some of my friends hold suggested that i just draw from a pair of roller blades and roller blade around the room ...some enjoy suggested playing squash ....(not sure how thats possible without breaking a fanlight ) ....anyone got any thinking?
Decorating Ideas?
Answers:    How about some tennis racket or badminton rackets and a bunch of Nerf ball...you could smack them all around and it shouldn't break anything.
Does anyone know where on earth I can...
Turn it into a workout room