For hackers it is often trivially easy to webcams to break, especially if this standard is not sufficiently secured. Speedlink has what found with the Spy Guard Webcam Sticker.
Laptop cameras are often still susceptible to. Do you use the webcam in your notebook hardly consider him to paste. That can, in principle, with any kind of colored tape.
But should some cleaner, then take a look at the Spy Guard Webcam Sticker from Speedlink. Each sheet (€4.99) contains six, available in both standard black as in the above cool camouflage-tone.