Deskford Draco

[Robert Vermaat]

a draco whose head looks more than a little like the surviving portion of the Deskford 'carnix'.

Although I appreciate the discussion, I have some reservations:

a) the draco in this image has a nearly closed mouth, whereas the Deskford object hasn't. So either it looks like it or it does not. 
b) the Deskford object is clearly a part of a larger object, which favours theories that is was part of a musical instrument rather than a windsock. It was clearly not mounted on a shaft, not could a tail be attached to it (no flange).

This object in your post above shows similarities to another 6th c. Roman draco, also with a nearly closed mouth but also with something attached. In my humble opinion the later dracos no longer had a windsock attached but a banner instead, so the heads no longer needed to have open mouths.