So once again I changed my idea completely, since I was trying to use the objects too literally. So now my three objects are:

OLD VIDEO CAMERA - material

INSECT - motion

SPY EQUIPMENT - meaning

So now I am thinking of creating a mechanical mosquito, that can spy on people. It will be in the room recording something and then it will be found by a human, will try to escape but will get smashed by a newspaper at the end =D