I've got a bit by this artist, which I bought from the states a few years ago and then forgot the name - I can't read it. It is Warren, I remember better after the prompt.
It too has just a tiny hole at the top, and lots of nodules on the body.
I don't think it has to be anything or for anything - that was the point of studio glass. It does not have to be functional. But you could stick a single flower in it and call it a "solifleur" if you want.
Piccies to follow.