Lyric discussion by nullportal 

"black tongue tied Round the roses"

This is a fundamentally Goth fashion reference. It's obscure/archaic (as Goth itself can often be), but "tongue" can refer to a broad strip of fabric used to wrap around and bind. ["Her hair pulled back in a ponytail held by a tongue of blue ribbon" for instance.] If it has laces/cord as a double outer binding over the ribbon of fabric, this even more resembles how a shoe tongue looks and works, so drawing the analogy by functionality works.

"Toy diamond ring stuck on her finger" can also refer to the quirky and inventive devices (necessarily cheap because of low discretionary income) Goth girls might use to fancy up their look.

"With a noose she can hang from the sun" sort of sounds like the fascination with death and suicide taken to extremes, with extremes of looking for fresh and quirky was to express an overly dramatic image. Very Goth.

I'm just going to say there is so much Goth imagery and reference probabilities (if you're familiar enough with these kinds of girls) and even Goth styled expression that I think one's mind should be looking for that flavor of interpretation throughout the song.

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