Buy a white sweatshirt and green, red and yellow felt. Also buy little bells to sew on your sleeves and battery operated lights. Draw out the christmas tree's, letterings, heart, and cut out and use fabric glue to glue everything together. Lay everything out where you want it on the sweatshirt then use fabric glue to glue it on your sweatshirt. Then sew on the bells and cut holes wherever you want the lights to come out. I used duct tape to hold all my lights still in the inside of my sweatshirt and used a fanny pack to hold the light switch.