You can buy a huge roll of white tissue paper for about $40 - you
may want to check a Pitsco Science catalog -
> pictures of our tissue paper balloons and links to the lesson plans we
> used
> and history of fire balloons can be found at:
> http://www.myartroom.homestead.com/fire.html >
> The students loved this project, but each balloon took 40 sheets of
> 18"x24"
> tissue paper.
>
> Donald Peters
>
>