Unforunatley i did not post tihs until i knew it worked... so that means that is was all packed up and i was unable to take it apart. sorry abput this but i hope you can use the diagram.
foam craft ball(should be just a bit bigger than your speaker)
speaker(mine has about a 3in. diameter
Old broken guitar cable OR 1/4 in female jack
felt, foam, or something soft to dampen the sound
tube, 3-5ft. at about 1/4 in diameter
jar or box