mambi Halloween Gift bag October 11, 2013 Shelby Strichard Using our 6"x6" mambiSHEETS™ that is available at Michaels. A great way to decorate a bag if your papers aren't big enough to cover the bag ... PIECE THEM. Alice Golden made this awesome bag, a great use of a smaller pad of paper and embellishments! CLICK HERE to see ALL the Halloween and Fall items available at Michaels right now. Hurry before they're out of season.