EarthQuaker Devices Bit Commander V2 Octave Synth Pedal Drum Kits Basically they are just short

Basically they are just short lengths of Bamboo with the inner knots hollowed out (except for the bottom one)

Why you need the Yamaha LL6BLARE Dreadnought Body Acoustic Guitar - Black:

making it a favorite among musicians who seek both aesthetic appeal and functional excellence

Includes side pocket to hold accessories

EarthQuaker Devices Bit Commander V2 Octave Synth Pedal Drum Kits Basically they are just shortThe Bit Commander is a monophonic analog guitar synthesizer with four octaves of vintage square wave synth tones. Its no nonsense interface makes it easy to add or subtract octaves to create a wide variety of sounds without having to dial in envelopes or oscillators. Ripping sub octave thump, pulsing octave down, a lightly squared base tone and a swelling transformer based octave up all join together to make a single guitar sound like an army of oldie