Well, i think what I was thinking was something that can only be done in photoshop. You get the shape and color it in. Then you slide the Fill Transparency to 0% and then add a stroke, inner glow, and outer glow. I'm trying to recreate the Zanz Trident too and I think i've just successfully nearly mimicked the glowing effects on the outer portions. I just need to adjust the actual shape some. when I get done with you, you are welcome to have it.
But which marks have a 3d effect? And I didn't say that had to all be similar. I just thought it might help it along more, since you said it was missing something.
But as for your Zanz Trident now, I think the outline/border you have on the outer portions are much too thick.