Painting glass filled vials?

[nedley]

So, I'm trying to get some work done on my Dominus, but I can't seem to get his glass containers on his back done correctly. Does anyone have a good guide on how to paint it? I've seen the Eye of Terror one, but I'm still struggling. 

[calypso2ts]

There was a good one in WD for Blood Angels - way back when the previous codex was released. It was for painting a half filled vial of - well - blood.