Steagle 1.0 Laptop Webcam Cover
By now it's fairly common knowledge that it's not only possible but relatively easy for a person or an agency to gain access to your laptop webcam without your knowledge through the use of various exploits. Some people simply cover their front-facing camera with a sticker, but that gets to be a pain if/when you ever actually want to use the thing.
The Korean-made Steagle 1.0 is a thin, precision-machined aluminum cover that adheres over your webcam and sports a sliding mechanism to reveal the camera whenever you need it. It obviously won't keep someone from recording audio from your laptop's mic if you've been compromised, but it does at least block the video feed as long as the slider's in place.
The cover is $12 at Amazon and comes in these colors: