This Homemade Boo Berry Costume is a super easy costume to make. Paper mache a complete helmet, paint it white. Then cut out eyes and nose. Next, buy a white fleece blanket and hot glue it to the helmet. Cut the eyes out and paint the fleece with a little blue spray paint. Find and old hat, paint it yellow with a red band. Cut 2 “o” with the holes in the middle and then one full circle in blue and half it up, those are the eyes. Put it on and you have BooBerry!