Certainly outside the box given JBL's past speaker designs, Spark ($130) combines the company's flare for eye-catching designs with a distinctive use case scenario. Either yellow, red, or blue in color, Spark is shaped like a megaphone with a rubber cap at the back and a perforated metal speaker grille on the front, hiding two 1.5" drivers inside. The speaker is translucent in the center, letting you see through to the point at which a thick color-mismatched…