I think this is the first thing I ever made blink. I mean, technically it just glows, doesn't blink. Semantics.
The idea is to simulate a uniform glowing material by wrapping the EL wire close enough together. Its sort of an interplay between the width and diffusiveness of the EL wire and the shagginess of the fur.
I definitely did some experiments and ended up with a "medium" size of EL wire, but I'd have to dig around to find where my notes on this are.