Babble

So Babble is sort of the opposite of the Wave Bubble (and cellphone jammers in general) — instead of blocking out distracting noise from other people on their cellphones, Babble creates some distracting noise surrounnding your phone calls so your colleagues/co-workers/wife family can't follow what you're saying. It takes your spoken words and feeds them through an algorithm that generates a cloud of babbling voices around you, so that your actual conversation can't be overheard. Plus, it looks like a fuzzy old time radio. Not terribly subtle, though, nor portable. There's always a catch, isn't there?