What you need:
-10 sheets of tissue paper for large ball
-3 to 4 sheets for the smaller ball
-Pipe cleaner for each you make
-Fishing Wire (what I used to hang it with).
* Another side note, I also added a paper clip to hook it onto the ceiling. The room we were in had the wire frames in the ceiling, so this was an easy way to stick it up there without harming a thing.