I've been hankering after these as deco for ages, and I finally have the skills to do it myself. Recolour etc as you need. In game they have a slight emissive light, and I don't know how to do that, so if you want them to look more glow-y you'll need to do it in post-processing.
DOWNLOAD: [link]Mass Effect and all its assets belong to EA/Bioware. No copyright infringement intended; this is fan-created work for non-commercial use.