A bit childish perhaps, a bit of a gimmick, but fun nail art when you're in a hurry... Barry M do great nail polishes in great colours, and they usually are one of the first out with the new trends (like magnetic polish, or crackle glaze or what have you) and they're cheap-as-chips and they're good quality and they're readily available...
|The shades available|
There are three polishes available, all under a fiver, from Boots or the Barry M site; I purchased the only one I was particularly interested in, the Pink one.
These dry reasonably quickly, although the pink (original colour) looks more uniform and opaque - when you add the topcoat to change it to purple, the purple seems a bit more... jelly-ish... slightly less opaque than the pink colour... not as uniform. Still, it's a quick-n-dirty way of getting some nail art going with just one polish (and a topcoat, natch).