This is my black cat mani. I was going to go at it differently... it was not going to be cute!
For the base, I used a glow in the dark polish. I bought this off of eBay for cheap ~$2.20 including shipping. I bought other colors too! I just wish I could give a real brand name. I got them here if interested. They have 20 different colors. I have pink and purple and waiting on my red, orange, blue, and yellow to arrive.
I have to say, I really like the polish. I only needed 2 coats. I was worried it was going to be thin, cheap, and streaky but that was not the case for me. It went on nicely and 2 coats is enough for the glow effect to work great.
As for the design, I had seen a black cat mani by Rina from Simply Rins that was just too cute. I had picked out stamp images to use that were more halloween-esque. I decided I didn't want to use a bunch of stamps for everything so here are my cat painting skills.
To see the original... http://www.rina-alcantara.com/2012/10/nail-art-black-cats-galore.html
Pretty cool being able to see the design over the glowing color.