It seems like as nail polish colors progress, so do the once plain bottles that contained them. Here are the bottles of nail polish I have found to be particularly artistic or beautiful:

OPI Bling Bottle from Special Event in Taiwan.

Anna Sui Shimmer Nail Polish Available from Urban Outfitters.

White Marshmallow Cube Available from Hot Topic.

Need Me from Enchant Cosmetics China.

No 7 Nail Polish.

Forever 21 Nail Polish.

Jill Stuart Nail Lacquer.

Specialty Nail Polish from Nails Inc. for the Royal Wedding.

Sheswai Laquer.