I have taken it upon myself to design a smallcaps version of the OFL licensed Gentium font.
For copyright reasons, it is called GsmCaps for now.

I also made a semi-sans serif version of Gentium, called GsemiSans.

Both were really learning processes for me, and I plan to use them for an upcoming project. I may submit them to SIL, I don’t know yet.

Thanks for any comments and critisisms; I am a complete beginner, with no formal training. But I just love typography!

Gentium original: http://scripts.sil.org/cms/scripts/page.php?site_id=nrsi&item_id=Gentium...

(Tell me if the PDFs don’t work for you, and I know one of the fonts is not serif, but I had to pick a forum.)