There are so many holiday traditions we love and cherish, but only one requires you to dress in attire you wouldn’t be caught dead in at any other time of year. December 21 is National Ugly Sweater Day, a time for you to show off your flashiest, tackiest holiday wear with pride.

Business is booming for the ugly sweater industry, which has become a multi-million dollar industry in the past decade. Between 2012 and 2015 alone, “ugly sweater” related searches online jumped 200%. These days, it seems like everyone wants to rock an ugly sweater this time of year.

Most major retailers now cater to the ugly sweater crowd, so in order to make sure yours is one of a kind, use your DIY skills to make your own. Natural gas and oil help create the materials you’ll need to make your ugly sweater epic. Glue, glitter, tinsel, felt, pipe cleaners, buttons, beads, string and pompom balls are all petroleum based materials. Plus, the basic sweater you’ll use as your canvas may be made of natural gas and oil derivatives, as is the glue you’ll need to affix all of those obnoxious decorations. Kick things up a notch by adding fairy lights, which run on power from natural gas and oil, to really make your sweater shine. And don’t worry, even if you’re an ugly sweater novice, you can even get an ugly sweater DIY kit to help get you started.

So what are you waiting for? Grab your hot glue gun and go to town! Check out this collection of truly heinous sweaters if you need a little inspiration.