I'm offering a free service of designing a logo for your Open Source project.
Requirement is that it needs to have some users (some download counts or github stars). Best if the project has a website even if it's just a Github pages one.
Designed logos will have license:
The website that will use the logo will need to put proper attribution:
Logo by Jakub T. Jankiewicz licensed with CC-BY-SA
The link to my website can't have rel="nofollow" attribute.