My Science Fair

This year for science fair I'm doing a test on what other materials can you use in a cup and string telephone and what ones are the best and have the best clarity, durability and density. I spray painted my board red and blue and I have got purple paper as my background paper. I have 9 tests in my experiment. My first test is paper cup and cotton string, next was paper cup and poly string, then paper cup and fishing line, next was plastic cup and cotton string, then plastic cup and poly string, then plastic cup and fishing line, the tin can and cotton string, next was tin can and poly string and lucky last was tin can and fishing line. I based my test on 3 things. Clarity, durability and density.