Yes, the order can be placed this weekend with the discount. You can add to the notes that you are sending a shirt to replicate. 20% off using code DUCKDUCK this weekend. Both the heavy vintage are really heavy, something that would last a lifetime. Will make very nice jackets too. Will give the exact weight on Monday. As long as the order is placed this weekend, the system will allow the discount. How we process it after that does not really matter.