Easy Diy Belle Costume . Here's what you will need. Alice in wonderland costume from keiko lynn. DIY Belle costume fairytale celebration day Teacher halloween from www.pinterest.fr One of the easiest costumes on this list, people will instantly recognize you as one of history’s most famous figures. This adorable, super easy costume is as simple as buying a black shower cap and hot gluing fake greenery to the top of the hat. Take your dress and fold it in half with right sides of the fabric together and sew it from the top to the bottom with a straight stitch, as shown.