Not to rain on your parade, but unless the friends intend to never return to their home country with the quilt you might be well advised to check and make sure that the laws in the country where they live are such that there will not be any legal problems with defacing the countries flag. Some countries aren't as liberal with their laws as the USA is and there could be severe legal repercussions for having something made from the countries flag. Until it went through the Supreme Court it was highly illegal to deface the US flag and could land you in jail if you did.
Oh, sorry for being unclear. I don't intend to use any bits of actual flags, just to make them out of fabric. And all of the friends are American.












All that work!











