Michael: i suggest you use trial and error - try a few different versions before you decide on the correct structure, then make one with special wood and decorations. with short string it is possible to get the sound by spinning it beside you, but with long string it has to be swung horizontal above your head. longer the string the deeper the sound.it should give a vbvbvbvbvbvbvbvb type of sound, which breathes - picks up then drops off as it reashes it's max string twist, then starts again - don't exactly know what is going on, perhaps it spins in the opposite direction - i really don't know, but the fishing swivel did help.