There was an unwanted and unexpected surprise in a New Hampshire couple's Amazon Prime delivery. Danielle McKenzie said her husband opened one of their purchases Friday, and not only was her item in there, but there was also a plastic bag full of what appeared to be used medical devices. The bag containing the items is labeled "return bag for used transducer arrays" which are items commonly used in an ultrasound. McKenzie said she was told by Amazon representatives that they may never know how the devices ended up there."I spoke with someone who was very apologetic. She was mortified that it happened and she was very concerned," McKenzie said, "It's just weird and creepy and disturbing."