Slackbox - Spotify playlist collaboration through Slack
Iriun Webcam - Use your phone's camera as a wireless webcam in your PC or Mac.
RightGIF - Less noise, better GIFs. A better /giphy for Slack.
iVCam - iVCam transforms your Mobile Phone / Pad into a webcam for Windows PC.
Remixatron - Infinite Jukebox on the command line in Python.
IP Webcam - A universal network camera adapter for the Windows operating system.