Christmas sweaters accumulate in the back of everybody’s closet, festooned with marching reindeer, tipsy Santa’s, knitted snowflakes, frolicking elves, and lopsided tree ornaments. The Ugly Christmas Sweater tradition especially caught on in the UK, but now everywhere you look there are ugly sweater Christmas parties in the US. This year create your own Ugly Christmas sweater with the helpful DIY tips below. Materials You May Need Sweater Prowl gift shops, charity shops, yard sales, and vintage boutiques for likely candidates. You may find a tacky masterpiece that needs little alteration, but if you’re committed to your own unique vision, you…