To find Free (as in speech not as in free beer) icons, follow the guide !
Here are a few web sites to get icons that can be used freely:
- the librairy OpenIcon
- IconFinder has a Free section which contents only icons without any payements. BE CAREFUL, to read the licence, sometimes, it is mandatory to include a link to the author to use the icons.
- The section Wikimedia Commons section could be of interest (includes amonf other things the LibreOffice icons).
Good icons chasing !