What you needBalloons
1 1/2 metre piece of white fabric
Start by blowing up the balloon and tying a length of fishing line to the knotted end of the balloon.
Next thread the fishing line onto a needle and thread the needle up through the centre of your piece of white fabric. Keep pulling the thread through until the balloon stops at the top.
The fabric should be hanging off the balloon. Tie a knot to secure the thread and balloon then using some hooks or sticky tape attach the balloon to the ceiling of the room.
This will create a free flowing flying ghost.
To add to the effect create a small breeze by opening a door or turning on a fan to blow the ghosts about the room.