Meh. I don't know about Japan, but this last semester in programming I turned in alllll my programs the day of the final (but they were assigned throughout the semester). I got a B in the class. So, maybe your teacher will just be glad you turn in the homework even if it's late, ne? *hopes that will be the case for you too*

Hmm, true. Maybe you can make a colorful skirt or a bag out of it~ :D