The Ultimate Stocking Stuffer: DIY .40 Cal Headphones

The guys on the Inspire to Make YouTube channel do some pretty good work, but in our opinion, this is their best project yet. You've probably seen the odd guy at the shooting range sticking empty shell casings in his ears for makeshift earplugs. Well this video takes that concept and makes it… cool.

Check out the video to see how to make your own headphones from .40 caliber shells.