TV Project Runway - Season 12 Episode 12 : Butterfly Effect Project Runway - Season 12 Episode 12 : Butterfly Effect 6.3/10 by 105 users The designers are tasked to create an avant-garde look inspired by butterflies. Later, they are given the additional task of re-purposing a losing look into something new. They have three days to complete both challenges. Details Casts Posters Images Title Project Runway - Season 12 Episode 12 : Butterfly Effect Alternative Titles Bravo Project Runway First Air Date 2004-12-01 Last Air Date 2025-07-31 Number of Episodes 280 Number of Seasons 21 Genres Reality, Networks Lifetime, Bravo, Freeform, Casts Christian Siriano, Nina Garcia, Heidi Klum, Law Roach Plot Keywords , Self - Mentor Christian Siriano Self - Judge Nina Garcia Self - Host Heidi Klum Self - Judge Law Roach Episodes List Project Runway Season 12 :Episode 1 Sky's the Limit Sky's the Limit 2013-07-18 Aspiring fashion designers compete for a chance to break into the industry. Each week, a designer is eliminated from the competition after exhibiting... Project Runway Season 12 :Episode 2 Million Dollar Runway Million Dollar Runway 2013-07-25 Aspiring fashion designers compete for a chance to break into the industry. Each week, a designer is eliminated from the competition after exhibiting... Project Runway Season 12 :Episode 3 An Unconventional Coney Island An Unconventional Coney Island 2013-08-01 Aspiring fashion designers compete for a chance to break into the industry. Each week, a designer is eliminated from the competition after exhibiting... Project Runway Season 12 :Episode 4 Tie the Knot Tie the Knot 2013-08-08 Aspiring fashion designers compete for a chance to break into the industry. Each week, a designer is eliminated from the competition after exhibiting... Project Runway Season 12 :Episode 5 YOU Choose Your Materials! YOU Choose Your Materials! 2013-08-15 Aspiring fashion designers compete for a chance to break into the industry. Each week, a designer is eliminated from the competition after exhibiting... Project Runway Season 12 :Episode 6 Let's Go Glamping! Let's Go Glamping! 2013-08-22 Aspiring fashion designers compete for a chance to break into the industry. Each week, a designer is eliminated from the competition after exhibiting... Project Runway Season 12 :Episode 7 Shoes First! Shoes First! 2013-08-29 Aspiring fashion designers compete for a chance to break into the industry. Each week, a designer is eliminated from the competition after exhibiting... Project Runway Season 12 :Episode 8 Having a Field Day Having a Field Day 2013-09-05 Aspiring fashion designers compete for a chance to break into the industry. Each week, a designer is eliminated from the competition after exhibiting... Project Runway Season 12 :Episode 9 Let's Do Brunch Let's Do Brunch 2013-09-12 Aspiring fashion designers compete for a chance to break into the industry. Each week, a designer is eliminated from the competition after exhibiting... Project Runway Season 12 :Episode 10 Project Runway SuperFan! Project Runway SuperFan! 2013-09-19 Aspiring fashion designers compete for a chance to break into the industry. Each week, a designer is eliminated from the competition after exhibiting... Project Runway Season 12 :Episode 11 Next Generation... Next Generation... 2013-09-26 Aspiring fashion designers compete for a chance to break into the industry. Each week, a designer is eliminated from the competition after exhibiting... Project Runway Season 12 :Episode 12 Butterfly Effect Butterfly Effect 2013-10-03 Aspiring fashion designers compete for a chance to break into the industry. Each week, a designer is eliminated from the competition after exhibiting... Project Runway Season 12 :Episode 13 Finale, Part 1 Finale, Part 1 2013-10-10 Aspiring fashion designers compete for a chance to break into the industry. Each week, a designer is eliminated from the competition after exhibiting... Project Runway Season 12 :Episode 14 Finale, Part 2 Finale, Part 2 2013-10-17 Aspiring fashion designers compete for a chance to break into the industry. Each week, a designer is eliminated from the competition after exhibiting...