FIrst of all you got to choose which colours you would like. I worked with the colours black , white, green and pink but of course you can take other colours if you like! But remember that you should paint with the lightest colours first and then take black and other dark colours.
I used two-way nail polishes in white, black and pink from Nail Star and Yeslove. The ones from Yeslove is really cheap and costs only 1-2 euros. But remember to try if they work before you buy them (even though this isn’t always allowed) , a lot of them is useless. I also used a white nail art polish from Wynie and a green (249) from Depend.
nailartofmine 
Awesome! 🙂