Findings:

• RSA Secret Key Challenge
• challenge
• Pepsi Challenge
• Challenge of the Future
• Real World Road Rules Challenge
• Challenge a stupid patent
• The Saltine Challenge
• 13 challenges for the 13th generation
• Nodeshell Challenge
• University Challenge
• Agnosticism is the greatest intellectual challenge
• Christian challenge
• The Cheap Beer Challenge
• Scrapheap Challenge
• Minerva challenges Arachne
• BT Global Challenge
• Front Page Challenge
• Simon Singh's Code Book Cipher Challenge Cracked
• The challenge we face
• Reading Between the Lines: Lessons from the SDMI Challenge
• 24 challenge
• Daz Doorstep Challenge
• voluntary challenges in Nethack and Slash'Em
• The Great E2 Fin de Siecle Fiction Challenge
• European Soccer Challenge
• The 2-sentence Fin de Siecle Fiction Challenge Entry
• Learning Machine Challenge
• The 1-sentence Fin de Siecle Fiction Challenge Entry
• Fiction challenge results
• Challenge of Nexar
• Triangle Challenge
• Triangle Challenge Solution
• The Long Island Challenge
• Fed Challenge
• ECCp-109 Challenge
• Challenge Coin
• Chip's Challenge
• Ferrari F355 Challenge
• American Solar Challenge
• Freedom's Challenge
• James Randi Paranormal Challenge
• Three Peaks Challenge
• BOC challenge
• Challenge for Change
• Full Metal Challenge
• Cheesily Cheerful Chart Challenge
• The Lyme Park Downhill Challenge
• Most Extreme Elimination Challenge
• E2verse Valentines Challenge (collaboration)
• challenge response
• F1 Career Challenge
• Secret Me-Meta-Node Challenge
• The 99p Challenge
• DARPA grand challenge
• Challenge everything
• E2verse previous challenge (collaboration)
• Ivan's challenge
• Three Pint Challenge
• The Mentos Challenge
• wertperch's nodeshell challenge (document)
• Puzzle Quest: Challenge of the Warlords
• The Stephen King Challenge
• Harry Potter Interactive DVD Game: Hogwarts Challenge
• Millennium Challenge 2002
• THE IRON NODER CHALLENGE
• The Notebook Challenge
• Clomid challenge
• THE IRON NODER CHALLENGE 2: ELECTRIC BOOGALOO
• The Nuzlocke challenge
• THE IRON NODER CHALLENGE 3: THIS TIME IT'S MARTENSITIC
• Secret Santa Summer Nodeshell Challenge 2011
• "So?" is a challenge
• THE IRON NODER CHALLENGE 4: FERRASSIC PARK
• The challenge of writing a meaningful free-form poem using only two letter words
• THE IRON NODER CHALLENGE 5: THE FERROUS FRONTIER
• Sahara's Math Challenge # 1
• Noah's Ark challenge
• a partner who challenges you
• THE IRON NODER CHALLENGE 6: RUST NEVER SLEEPS
• The 2013 IRON NODER CHALLENGE (document)
• THE IRON NODER CHALLENGE 7: NODE HARDER WITH A VENGEANCE
• Up for a challenge?
• THE IRON NODER CHALLENGE 8: RUST IS FOR THE WEAK
• THE IRON NODER CHALLENGE: 9 FAST 9 FERROUS
• October Skeleton Challenge
• Ice bucket challenge
• THE IRON NODER CHALLENGE XII: WE'LL RUST WHEN WE'RE DEAD
• even if you fall from an impossible challenge,
• where you see mysteries, i see challenges
• "Age by age" reading challenge
• A Challenge is Issued
• Congratulations, you are about to experience a profound challenge
• Rod Torkelson's Armada Featuring Herman Menderchuk
• Spam Titles featuring Sexual Enhancement products
• 15 Albums With Excellent Drumming Featuring Non-Famous Drummers
• Magical Mystery Tour
• beans, beans, the magical fruit
• magical
• The Magical Mystery Lisp
• Visionaries: Knights of the Magical Light
• Being a Christian is magical and foolish: Maybe we're all caught up in a collective psychosis
• Magical Flying Hat Turbo Simulator (MD)
• amulet of magical breathing
• magical fairy-tale locations
• Greek Magical Papyri
• Magical uses of spittle
• magical grades
• Mordenkainen's Faithful Hound
• Magical Mass Migrations of the Nacerima
• magical realism
• Magical Traditions and the Surrealist Depiction of Cuba and Haiti
• Shh... it's magical
• Magical Misery Tour
• magical trevor (user)
• Magical Truck Adventure
• Magical Ideation Scale
• St. Mungo's Hospital for Magical Maladies and Injuries
• magical cow (user)
• Magical Trevor
• In dark alleys there is magical realism with knives sharper than this
• magical number
• How to make the magical crab dance
• Magical Girl
• Magical Negro
• Magical Texts (category)
• because eventually you will see past my magical words and focus once again on the matter at hand
• Magical realism (category)
• magical desperation
• Magical Girlfriend
• A simple way of constructing (some) magic squares
• mickey (user)
• Mickey Mouse
• Mickey Mantle
• Mickey Hart
• Mickey Mouse Club
• Mickey Melchiondo
• Mickey Rourke
• mickey mouse program
• mickey
• Mickey's
• Mickey Finn
• Mickey Rooney
• Mickey Newbury
• Mickey Dolenz
• Mickey Zucker Reichert
• Texas Mickey
• Mickey M'Grew
• Mickey Spillane
• Mickey Cochrane
• Mickey Mania
• Hidden Mickey
• Mickey's Son And Daughter
• Micky Ward
• Mickey Cohen
• Metal Mickey
• Mickey Blue Eyes
• Take the mickey
• Mickey Kaus
• Mickey Wright
• Mickey Moone
• mickey glitter (user)
• Mickey Welch
• Mickey Smith
• mickeyy (user)
• Mickey Mouse shot
• mickey p. (user)
• Mickey Curtis
• Mickey Mouse watch
• Mickey Dolenz (node_forward)
• Mickey 7
• Tetris
• Tetris Attack

If you Log in you could create a "Magical Tetris Challenge Featuring Mickey" node. If you don't already have an account, you can register here.