Types of Paper to Use

Railroad board is one of the best types of paper to use.  It comes in 4-ply (four layers) and 6-ply (six layers).  Use the 6-ply railroad board: It is stiffer and it works extremely well.  On page 135 of  The Paper Boomerang Book: Build Them, Throw Them, and Get Them to Return Every Time, I have listed some  sources where you can purchase this paper.  If you cannot find a local store that sells this paper, you can purchase it at  http://www.paperboomerangs.com/.  But to save money, try to find a local source for the paper to avoid the cost of mailing.  My book explains how to find this paper, but I will do further research and post additional stores across the United States that carry this paper. 

Note: Some office supply stores do not make a distinction between railroad board and poster board, but  there is a great difference.  Poster board does not work!  It is too floppy.  Be sure you're getting the 6-ply railroad board.  It is stiffer and thicker than poster board.  Pacon Creative Products  has both the poster board and the railroad board.  Be sure to purchase the 6-ply railroad board.  They come in 22 in. x 28 in. sheets and in various colors.