Big libraries as FontAwesome or Glyphicons are all missing icons to represent licenses.
Sample:

From the project's README:
A fonticon with licenses logos
This repository contains the generated font and SCSS file you should use.
If you need the sources, check this repo.
State of this project: early days.
Usage
Put the fonts in a folder of your choice on your project
Use the SASS file to use the font like this in html files:
<i class="li li-cc-0"></i>
Variants
You may use the following variants:
li-lg
for a slightly larger icon
li-2x
, li-3x
, li-4x
and li-5x
for icons x times bigger that the
current font size
li-fw
for fixed width icons (for now, every glyph have the same sizes)
Contributing
If you want to contribute, check the sources repository.
Licenses
The font and scss files are licensed under the Creative Commons Zero license.
That mean the font is public domain.
Every icon have their own licenses and should not be used individually if
the license does not allow it. Their individual licenses are listed in the
sources repository.
If you represent any of the organization for which a logo has been created
in this font and have any legal issue with it, please contact us by opening
an issue on the sources repository.
We'll be glad to find a good decision together. You can also contact me directly
on Gitter
NOTE: All brand icons are trademarks of their respective owners. The use of
these trademarks does not indicate endorsement of the trademark holder
by Experiments Labs, nor vice versa. Please do not use these logos for any
purpose except to represent the company, product, or service to which
they refer.
Oh noes ! There is nothing here!
Come back later, content is being created, somewhere
Oh noes ! There is nothing here!
Come back later, content is being created, somewhere
Oh noes ! There is nothing here!
Come back later, content is being created, somewhere
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