That's why Dr Pixel says to say the lot with no accessories. I'm glad he's going to try to fix the mesh tho.
Someone in another thread here said they upgraded the video card drivers and the problem went away too.
That would be me, and it was updating my nVidia drivers to 93.71. It got rid of most of the flashing blue accessories, even on my non-playables. Rings, earrings, cigarettes, and the like. I still get a flashing blue pirate hat, but only if I use a certain hair mesh with it - which makes no sense. Actually, the hat is the only thing that flashes blue now.