Experiment: please take my [speakervest] idea and make it real

Hi SF and abroad, I am a musician. I have need for a wearable-speaker vest. You have a speaker on the front and one on the back, a battery pack, and a way to connect your guitar or bass, or another 1/4" or 1/8" input. Live music meets mobility. You don't owe me anything if you actually make this happen, but sending me one would be a nice gesture.