My toes get exposed every summer I was looking for a nail polish and found a pretty sky blue one at home, so I applied it. Even though I didn't buy it this year, it doesn't dry out easily, making it easy to apply. However, since it is thin (light), I think you need to apply it twice for the color to look nice.
I bought a gel-type stick-on because there are a lot of them coming out these days, but I'm not used to it yet, so I'll try it next time.