Halloween is Monday. All kinds of funny, scary, and sexy costumes have hit the market -- have you got one for your own Halloween?

People always dress up as supernatural and scary beings during Halloween. Costumes are traditionally those of monsters such as ghosts, skeletons,  vampires, witches, and devils. In recent years, they also have included those associated with science-fiction-inspired characters, like aliens and superheroes.

Costumes also can be pop-culture figures, such as presidents, athletes, celebrities, or film and television characters.

Besides scary costumes, sexy or revealing costumes is another popular trend for women (and in some cases, men) to show off more skin than would otherwise be socially acceptable. Some young girls also often dress as entirely nonscary characters, like princesses, fairies, and angels.

Over the years, there have been times when Halloween was promoted as a children's holiday to rein in the licentious and destructive behavior of teenagers. During these times, Halloween costumes were aimed at children in particular. After the mid-20th century, however, more and more adults started to celebrate Halloween.

Following are the top 10 great costume ideas for Halloween this year.