Filed under: Misc. Gadgets, Portable AudioWe've seen the viewfinder of a VHS camcorder hacked into a night-vision headset, but this just might be even more retro than that. For those old seasoned enough to remember Ronco's Mr. Microphone, you may recall just how boring it became after a few short minutes of use. If you somehow managed to not discard the thing over the years, we've found the perfect use for it: a discrete spying device. Essentially, DIYers can strip the innards out, re-solder a few pieces and shove the resul
