<a href="http://eoghann.com/2014/04/lego-movie-inspired-nail-art/lego-movie-nail-art-02" rel="attachment wp-att-118435">Nail art fascinates me because you're working with such a small canvas and with one hand out of commission. Plus I can barely draw a straight line with two hands and a ruler. But more importantly this has LEGO in it and thus must be good.
If you click through to The Nailasuarus' article you'll get details on exactly what nail polish was used to achieve each effect.
Source: The Nailasaurus