Dorothy: All Halloween Costumes. Target / Holiday Shop / Halloween / Dorothy: Adult The Wizard of Oz Dorothy Halloween Costume Plus Size () Rubie's. 1 out of 5 stars with 2 reviews. 2. $ Adult Dorothy Low Heel Slipper Halloween Costume . Dorothy: Adult Halloween Costumes. This spooky season, make heads turn and be the center of attention everywhere you go. Halloween is just the time to make a statement with your creativity, and Target’s Hyde & Eek collection is just what you need to achieve your look. You can find adult costume .