Ok I got these nail art pens from a Fourth of July fair. Migi Nail Art. They are pretty cool. I wouldn't recommend using them as a base color as they are pretty sheer. But they have tiny nail art pins that make the work opaque. I've been practicing nail art stuff with them. I'm not the best. But here is my work. Cherry blossoms. It looks really nice from a far. hehe. Macro mode you can see all the mistakes. oh well. The base is essie fuji and the black lines are pink are from migi nail art.