Looking to protect your home on a budget? Thingiverse features a number of projects for the security-conscious consumer. One such project is a robot designed to conduct household surveillance.
The futuristic security robot, dubbed "A Little Bird Told Me" by its creator, can be controlled remotely and is designed to live-stream footage straight from your home to your mobile device.
If you have an old webcam lying around, then you might also consider printing a camera case, which turns your outdated equipment into a discreet surveillance system.
This small, stealthy casing for Veo webcams can be used with free software from TeboCam to monitor activity outside your home or business, notifying you via email whenever someone approaches your door.