I took a small container and poured some white Elmers glue into the tiny plastic jar and then I added 1 drop of the gel paste food color. This turned it totally black. I mixed it up and took a paintbrush and painted it on my nail. I wasn't going to paint all my nails, because I was just testing this to see what it would do. It gave my nails a matte finish. My daughter said it looked chalkboard nails to her.
*It's a lot easier if you just buy the matte black nail polish, but if you don't have any you can always try this. I would just put a clear coat on first and then do it and then add some pretty glitter on top or make a cute snow scene on it and then seal it with a clear coat. The great thing about it is that it will pull right off when you get ready to take it off.*