RetroArch - RetroArch is a frontend for emulators, game engines and media players.
Furbo - A treat-tossing robot for your dog
LaunchBox - LaunchBox is a portable, box-art-based games database and launcher for DOSBox, emulators, arcade cabinets, and PC Games. Download it free!
Petcube - Play laser tag with real pets from your smartphone.
Batocera.linux - Batocera.linux is an open-source and completely free retro-gaming distribution that can be copied to a USB stick or an SD card with the aim of turning any computer/nano computer into a gaming console during a game or permanently.
Petcube Bites - HD pet camera that flings treats