What? You don't like the wrench icon included with my Tag Mechanic?
I've not gotten around to making it automatically show up on the Plugin Shortcuts menu yet, but it's there for anyone to rename/resize/move if they so choose. I currently use it for the Plugin's widget icon on Windows. It's in the "images" subdirectory of the plugin, I believe. If you use it, make sure to leave a copy there, as there's code that looks for it in that location.