Halloween has always been a pretty tough time for men and women who need a plus size costume but all that has changed this year with some truly fantastic sexy plus size Halloween costumes being released. Here is just a small sample of your options. If you want to be menacing, you can go as a vampiress in the Sassy Vampiress Vampire Queen costume or, rather than being Alice be Malice in Wonderland in a corseted dress, crinoline, apron and leggings.