Basic Commercial Black  Suggested by SashiX 

I'd love to get the Barsoom font, actually.

Here's an example of A-Z in Martian (Barsoomian) text.

http://disney.go.com/johncarter/translator-share/#/translator-share/QSBCIEMgRCBFIEYgRyBIIEkgSiBLIEwgTSBOIE8gUCBRIFIgUyBUIFUgViBXIFggWSBa

Or a readable font that has the look of the Barsoomian letters.

I would like that, too.
Cf. http://cdn.dolimg.com/franchise/johncarter/downloads/john_carter_decoder.pdf

I don't have the chops to create the font, but I would be happy to thank whomever does it.

We need to talk with the author of that font, if he/she don't mind to make it public.