Trying to build the longest cup string telephone for my class competition any suggestions?? thick o?

Trying to build the longest cup string telephone for my class competition any suggestions?? thick or thin string?metal or cotton? Thanks =D or:Trying

Trying to build the longest cup string telephone for my class competition any suggestions?? thick or thin string?metal or cotton? Thanks =D

or:Trying to build the longest cup string telephone for my class competition any suggestions?? thick or thin string?metal or cotton? Thanks =D

Tags:cup,sound,string,competition,longest,build,