my favourite topper ever came from essence back in 2012, and it's called night in vegas. it came as 8th polish of their special effect topper range.
i love, love, love flakies, and this polish goes so well over everything, as you will see as i slowly update this post. multichrome flakies, shifting from yellow through orange to green, are perfectly dispersed in a clear base. i used up one bottle and this is one is the second one.