20 '90s Couples' Costumes for Halloween

No list of '90s couples' costume ideas is complete without a nod to Arnold and Helga from Nickelodeon's "Hey Arnold!" Wear a pink dress, white t-shirt, and large pink hair bow to be Helga, and whoever's dressing as Arnold needs a green shirt, red flannel, and blue hat. You can also use cardboard or construction paper to DIY a replica of his distinctive hair.