I got Dirty Blonde Fluidline Brow Gelcreme and wore it. While it was a little darker and warmer than i'm used to, it looked fine and wore well. I'm definitely going to be using it.
Today i decided to experiment and used the shimmering taupe Catch My Eye Fluidline (eye liner) from Glamour Daze in my eyebrows.
As i've posted, my brows are naturally quite thin and the hairs are somewhat sparse, so using a fine paint brush with somewhat stiff, short fibers, i painted in a fine line of this moderate taupe. I like the color, which is close to the Omega matte e/s i had been using, and i'm not bothered by the sparkles.
However, someone with thicker brows may not be as happy, since there will be more obvious shimmer. It's a matter of personal taste.
I haven't worn it long enough to see how stable the eyeliner is in the brow. The Brow Gelcreme wore like a champ!