Resin base looking good?

Hey all! I thought I should share this:



This is my first resin-base head. Eyes are hand-painted glass spheres and the jaw is hand molded. I had tried plastic hinges but they didn't work and the jaw stayed in place, so I just attached springs and it works beautifully!
Quick question too- How do I cover up the springs? I'd like to fur the jaw separate from the rest of the head so the movement will last, however I don't have the slightest idea as to how I can accomplish this.

Thanks!!