They're also in the logo of https://media.ccc.de https://media.ccc.de - At CCC events, the podiums always have a maneki-neko, whose constant movement is used by

They're also in the logo of https://media.ccc.de https://media.ccc.de - At CCC events, the podiums always have a maneki-neko, whose constant movement is used by the video technicians to verify that the feed has not frozen.