upcycle baby! diy milk jug lunch box! #genius! #repurpose To add the snap just punch a hole in the flap of the lid and another 1/2 way down on the bottom section of the front. Buy cheap snaps at Walmart and follow the instructions to insert. To get the smell out soak over night with white vinegar. Rinse and then use Dawn to ensure any remaining residue is gone. XOXO!