These little beauties were a Christmas present (see 'It's a Beautiful Christmas' for more), and I tried and tested both around New Years.
They are pretty thick, so ensure that when you paint on the colour you don't have too much on the brush. The colours are excellent, and they certainly do look like foil. The shine on them is brilliant, which is just as well, since you can't apply a top coat to it, as it ruins the foil effect. The only thing to worry about is that, as with most metallics, it creates tiny darker lines on the nail. To keep it neat, you need to keep the brush straight when you apply it and not brush in different directions.
Here's what they look like on:
And here are some nail art ideas:
Want some? You can get it at any good drug store, or from the Barry M website.
Colours come in Lilac Foil, Silver Foil and Gold Foil.