I started with Orly Black Vinyl. I've had this for YEARS... I bought it in high school when I was going through my Goth Kid phase. ;)
I added about 1/8 tsp of my SpectraFlair pigment. This is one of those tiny collectors spoons, so it's less pigment than it actually looks like. (The spoon is about 1/2 the size of a regular tsp.) I added it carefully to my polish, and shooooooooook it up good.....
And this is what I got! A BLACK HOLO! I'll let the rest of the pictures do the talking. ;)