Hey there :)
The first minute I saw pictures of OPI's DS Glamour, I knew, it had to be mine. Time passed, a lot of other polishes happened and I still am not *that* ready to buy it at the prices they offer it at the bay of evil. So I tried to franken one for myself. I used a drop of Wet'n'Wild Noctural- nah, too much green and then I used Essence's Deep Blue Sea (sadly, discontinued) and Glam Nails Rainbow, which I already raved about here.
And those two polishes mixed together was this:
(I used two coats, no topcoat- it was even more holo than it shows in the pictures :D )