Alexa, Alexa, Alexa: What to do with all those extra Amazon Echo speakers

Admit it -- you've got at least one Echo Dot stuffed in a junk drawer somewhere. I had two -- both were white 3rd gen (aka "hockey puck") models that have since been upgraded to the better-sounding 4th gen "orbs." But the old model doesn't sound bad, right? Like, not so bad you can bring yourself to toss it out, anyway. Hence, the junk drawer.