That room will do just fine.
*walks into back room with theanna and liquid ice close behind*
All you need is this little ball.
*holds out a green and blue ball the size of a marble*
You place it in the corner of the room, tap it 3 times, like so
*taps ball with wand*
Then tap with your wand any furniture you don't want to dissappear
*taps 2 chairs*
Then tap the ball 3 more times
*taps the ball 3 times . . . the light in the room dims, fades then brightens suddenly*
*the room seems to dissappear, green grass covers the landscape, there are 4 great oak trees and 2 stone structures, overhead the sky is blue with fluffy white clouds drifting lazily by . . . the only thing out of place in this serene setting is the 2 chairs from the stock room*
Take a look around ladies . . . feel the grass underneath your feet . . . see the bright blue sky above you . . . take a seat and enjoy the breeze while I explain some things to you. Those trees mark the perimeter of the room if you try to pass between them you'll just hit a wall. The stone structures over there, is where the door is.
*sees curious patrons looking in*
And at the base of that tree, is my little ball.
*walks over to tree and kneels over*
To end the spell just pick up the ball
*picks up ball, suddenly the room is back to normal*
So, what do you think?