- Munich: https://wiki.muc.ccc.de/moodlamp
- Bochum: https://www.das-labor.org/wiki/Moodbar (English version)
- Bochum: https://www.das-labor.org/wiki/Blinken_Borgs (English version)
- Hacker Consortium: http://www.hackerconsortium.com/wiki/index.php?title=Party_Mode
- Makers Local 256: !Alert & X10 - Makers Local 256 has an !Alert system that utilizes an IRC bot, a yellow strobe light, and an arduino. When users type !Alert in the channel it will briefly turn on a yellow strobe light notifying shop occupants that someone in the channel would like their attention. There is also an X10 system controlled by an Ackis IRC Bot that can be utilized for similar functionality.
- Enschede (TkkrLab) : OSC / DMX light and control system