Take your cup of Joe from classic to classified with a tilt-triggered spy camera.
The trick is to modify two paper coffee cups — install the device in one, slide it into the second, and align holes cut in the bottoms of each. Two LEDs can be seen through the standard plastic lid — one illuminates when the tilt switch is activated, the other flashes twice after a picture has been taken.
Think your cover has been blown? Simply rotate the cups to hide the camera... (more)
