Susanna (Winona Ryder) paints Lisa’s nails when the girl is strapped to a bed. The nail polish is pearly pink; according to its label, the shade is Sunspin by Avon. I couldn’t find any information about this shade, but here are some details about the bottle.

The film is set in the 1960s, but it seems the property master John Paul Jones combined a 1960s bottle with a 1970s screw cap. In the first picture above you can see two nail polishes from the 1960s: the shape of the glass bottles and the labels are reminiscent of the one appearing in the film. The second picture portrays Hello Sunshine, a “fun-shine nail tint” for girls which was launched in the 1970s; the screw cap is exactly the one seen in the film.