Metro Studio 1 allows you to create Icons for Metro apps (Windows Phone, and Windows 8).
These icons can be used across all the .NET applications like ASP.NET, ASP.NET MVC, Silverlight, WPF etc.
Syncfusion Metro Studio has a collection of nearly 600 Metro-style icons.
Icons here come as vector based and enable you to save them to different formats.
You can download the Metro Studio 1 from here.