A friend sent me a link to a site that allows you to create your own personal flag. Although you're limited to using the elements of existing flags, I think it's a neat take on the cultural identity map. Even though the flags created by countries generally encompass very broad ideals, this could be a way to at least get inspiration for creating a cultural identity map. It's worth a look.
Check out the site at www.wearemulticolored.com. (You'll need to have Flash downloaded to use it.)