Hey, thanks for the comment. Looking to add something now. Apparently this is the most 'open' and least restrictive of the CC licenses: http://creativecommons.org/licenses/by/3.0/deed.en_US but it still says we would need to attribute the author which we don't require.
Thanks for putting the works into the public domain Mikael! You should link to the actual license though: http://creativecommons.org/publicdomain/zero/1.0/ Thank you again and good luck with the effort!