gregriley.net

I found this site. It does what it says on the tin.

I used these icons so that when I plug my camera into my Mac, the desktop item displayed is my camera and not a standard white box removable storage icon.

I downloaded some nice alternative desktop icons from here for my usb pen drive.

This is a handy online tool to make gradient images, they are ideal for using as CSS background images. With this tool and Tumblr’s ability to host these images for you if you design your own Tumblr theme. By doing this you can design a unique Tumblr site with no desktop applications apart from a web browser of course.