I went to a "Day of Sharing" for an Ices club. (Which is basically a cake club.) It was really cool, in one of the presentations this lady was doing this technique using piping gel and painting it with vodka and luster dust.
So the next week when I could do whatever I wanted, this is what I wanted to do. Now the one downside was that I didn't have piping gel that day, so I had to pipe with frosting, and paint with luster dust.
The overall effect was definitely more bold, and less clear and iridescent, which was one thing really pretty doing it with clear piping gel, but overall I still liked it. I think it was pretty.
I tried to give you all the angles. Piping is definitely not my strongest cake skill, because mostly I just work with fondant, but I'm working on it and I think I'm getting a little bit better anyway.