5. Stun Phone

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Yeah, we never heard of one of those either, but apparently someone came up with the idea for a stun gun disguised as a cell phone. It probably isn’t a bad idea as a protection device that could be used by women to fend of amorous drunks in barrooms and nightclubs, and the pink case kind of hints that it was designed with ladies in mind, but trying to take it on a plane is not a stunningly good idea.