( CNN ) -- Nothing gets people in the Halloween spirit like group costumes . Teamwork was the finishing touch of many iReporters ' outfits -- whether it was a team of green Army men or crayons . Many iReporters devoted a lot of time and effort into perfecting their costumes , such as Jason Chuon and his partner Jeremy Kidd , who went to creative lengths to create their nun-chuck couples costume : `` We did some searching online and came across a website that sold chain links in every size and color one could imagine . '' They chose a hollow chain , cut it , tied each end of the chain to thin , plastic hair bands and finished it off with metallic-looking headbands . They chose to do a couples costume after Kidd proposed to Chuon on a business trip in Hong Kong a few weeks before Halloween last year . CNN iReport received an array of costume submissions -- iReporters slipped on masks and assumed the roles of superheroes , dressed in their best ( or worst ) as celebrities , and put the pop in pop culture icons with their creative and eye-catching outfits . The costume themes varied as widely as the amount of time invested in creating them -- one iReporter says she spent up to a month creating most of the 17 costumes for a `` Wizard of Oz '' group , while others chose simpler themes and created their costumes in one night , such as a Care Bears college student group displayed in the gallery above . However different the costumes were , two themes emerged among all of the iReports : the fun of the creation process as a group and the reactions at the end result . Kera Dacy and her movie accountant co-workers dressed up as the Village People and purportedly elicited quite a reaction from a celebrity on the set : `` At the end of the week we pay our employees and actors their per diem . Jessica Alba was on this list , among others . You can imagine her response to a biker with fake chest hair and an Indian handling her money . '' We featured some of the best submissions in the above gallery , but be sure to check out all of the great group Halloween costume submissions here .
Teamwork dresses up group costumes for Halloween . Many iReporters devoted a lot of time and effort into perfecting their costumes . Check out all of iReport 's great group Halloween costume submissions .