Um... How about... Youdil? Its where the whole purpose of the holiday (holiday meaning a day off work/ school) is to do good things for strangers. Obviously you dont have to do this... just like not everyone celbrates Christmas - I'm sure some group would find someway to be against my holdiay. But, yeah - I think that would be nice.

EDIT: BTW, its pronounced (yo (like "yo, brother!") deel... yo-deel.)