I'd chopped my nails down and decided I needed something amazing on my nails so I grabbed my bottle of OPI MPJ holo. I know I've already posted this as a NOTD color in the past, but come on... LOOK AT IT. :P I couldn't help myself. It's like sex in nail polish form. It's that awesome.
In case you didn't know, OPI MPJ (original holo version) is a deep charcoal base with rainbow holo. Color Club Revvvolution is similar (and from what I understand Diamond Cosmetics Chainmail Charm is as well, though I don't have that one to compare). There is currently a My Private Jet in OPI's regular line up, but it's nowhere near as awesome as this. It's still a pretty color, but not like this. If anyone is interested, I can do a comp with MPJ and Revvvolution.
Unfortunately, this color is extremely rare. You can occasionally find them on eBay (which is where I got mine a few months back), but for the most part, they are limited to dusties and swaps. I really wish OPI would bring it back. Why they changed it, I have no idea.