If you don't have your hands on a Holographic polish then you sir or ma'adm are missing out!

Holographic polishes contain rainbow colored glitter, which changes color on the reflection of light. This finish is very obvious in sun light.
-Lacquerized (here)

Originally I was planning on wearing a beautiful green color for Earth Day, but after a failed attempted at OPI Simply Smashing (I was just not feelin' it), I decided to go to Holo route.

Sally Hansen Mystical Mandarin