Just something I whipped together this morning. The icons are from the Dark Glass series:
Right now it includes icons for all the standard plugins, as well as the ps, Amarok, netstat, and todo plugins. If there's one you want, shoot me a message with the plugin name and I'll include it.
To install, just extract the tarball in your ~/.aero_aio/icons folder and select it in the "Configure Theme" menu.
All credit goes to the creators of Aero AIO and the Dark Glass iconset, I didn't do anything special here. Hope you like it.