4. Dias De Los Muertos Skeletons
Dias De Los Muertos SkeletonsThis costume was popular for both guys and girls this year, from Skeleton brides and grooms to full body skeletons. Leave it to trendsetter Heidi Klum to go a step above bones. (Literally.) [Miley Cyrus rocking the look with Aly Michalka and AJ Michalka, Photo via]