I needed to create a project logo for one of my projects: minijingle.
When fooling around with XMPP logo, I came up with a proposal for Jingle Protocol logo instead.
The reasons that I like it is because it makes reference to XMPP Logo, with the J of Jingle and also to a musical note, meaning the "media" side of the protocol.
This is just the first proposal, let's see what the XMPP and Jingle fans think about it...
I will post the vectorial format here later, so we can have community contributions. (But don't forget to mention the Author! Open Source doesn't mean anonymity)