Two O.P.I. polishes from older throwback collections caught my attention because of their duochrome affects. They are Kermit me to Speak from the Muppets Most Wanted Collection (2011) and Just Spotted the Lizard from The Amazing Spiderman Collection (2012).
I fell in love with both of these polishes right away. I've seen polishes with stronger duochrome affects, but these have just enough to make them intriguing. Just Spotted the Lizard leans more towards gold with green highlights and Kermit Me to Speak has a rosier hue with soft purple highlights. Both are fantastic and I honestly can't pick one over the other. Can you?