CDN of Common Web Site Icons

Question

I am trying to distribute my image HTTP requests across multiple domains for faster performance.

Is there a CDN (Content Delivery Network) out there hosting common web site icons (or sprites of icons)?

Example: Like carrots, arrows, icons for file types, or 50% opacity of black png.

FYI - I am NOT talking about hot linking. Yes, I use sprites already. Yes, I know there are other ways to reduce HTTP requests. Yes, I know you can use CSS3 for 50% opacity of black, ect. Those are just examples.

Thanks All!