Project Runway season 8 episode 6 winning dress Michael Costello

The winning dress designed by Costello. Photo courtesy of Lifetime

A party of mismatched bridesmaids who've done their bouquet duty in hideous frocks appear on the Parsons runway. Sporting vertical chest bows in Jolly Rancher hues, they elicit gasps from the season 8 contestants as Heidi Klum explains their dilemma: They want dresses they really can wear again.

Leave it to "Project Runway" to design the fashionable revenge StyleList has always imagined exacting on the fang-gnashing bridezilla who stuffed us into an expensive Smurf-blue dress, insisting it could be worn post-event "to the club."

And sew it goes:

The Challenge: Competitors are asked to use the bridesmaids' original frocks to make garments worthy of a stylish walk down the runway aisle.

The Workroom Drama: Taking cues from their bride friends, some bridesmaids fuss over every detail of their designs. The cheap, tacky satins are no one's fabric of choice. Things are still tense between Gretchen Jones and Tim Gunn after she played bully during last week's group challenge, but they make it work. For now.

The Rehearsal Dinner: The contestants display their collections at a pre-runway showcase where their clients model their rehabilitated looks as guests mingle and vote on favorites by placing buttons in fishbowls. Mondo Guerra's pink and black "Snooki in 'The Flintstones'" minidress wins the popular vote.

Meanwhile, Michael Costello is accused of telling reception guests not to vote for Ivy Higa because she's the "bitch of the show." He denies it. Viewers never see him commit the alleged offense.

The Attendants' Gift: Accessories sponsor Piperlime bestows the retired bridesmaids with jewelry, which is so much better than a monogrammed shot glass someone got from Mrs. Smurf Dress.

The Guest Judge: Designer Cynthia Rowley, who launched her bridesmaid collection in June, joins the panel.

Project Runway season 8 episode 6 bridesmaids dresses

Here come the bridesmaids! Photo courtesy of Lifetime

Who's In: The judges were probably hitting the reception champagne, because they give the win to Costello for an ultrashort, slutty-chic cocktail dress that looks nothing like its wedding-party original. It does, however, remind StyleList of the Marchesa dress Klum wore to the 2010 Emmys.

The rest of the designers' faces contort like wrinkled polyester upon hearing the victor. This means Costello, whose taste is questioned by the competitors, has won the same number of challenges as Jones.

Who's Out: Self-proclaimed "fairy drag-mother" Peach Carr gets the heave-ho for a dress judge Michael Kors skewers for its "avocado goiter" details. Carr stays true to her indomitable spirit, hugs all, and says, "Where else does a 50-year-old get a second chance? I was, like, 22 for six episodes."

Spoken like a true peach!

Meanwhile, read what happened when hat designer Philip Treacy visited "PR."