I buy mine at Walmart or HEB for $1.98. This is a thick, fast drying, strong polish that holds up well. I love the solid colors, my little girls love the shimmer colors. The shimmers are a little harder to remove, but so worth the fight!
They are usually $1.99 and can be found at drug stores and Walmart. I get mine at Walgreens. My favorite color is Cinderella. I put a top coat on it and it will last 2 weeks under normal wear and tear.