Cookie typeface is free to download from www.google.com/webfonts
It includes polish letters.
The development of Cookie typeface was financially supported by Google Web Fonts,
so now you can download it for free from :
And if you want to know more about the design process you can read a short interview with me on the official Google Web Fonts blog: http://googlewebfonts.blogspot.com/2011/11/interview-with-polish-type-designer.html