I started off with 2 coats of China Glaze Secret Peri-Wink-le:
I actually took this off immediately because I disliked it so much. Part I think was the chrome polish - it seemed like the crackle didn't want to do as much of it's thing over top ... it may not have been quite dry enough? I'll have to experiment more sometime when I'm feeling adventurous LOL.
Thanks for reading.