The Mammoth Book of New Comic Fantasy: Fourth All-New Collection, a reprint-anthology edited by Mike Ashley. Original appearances from 1872 to 2005 - in too many sources to list them all. (The only ones used more than once were 6 or 7 from Magazine of F&SF and 2 from Analog.) Most are from 1990 or later. Several stories are original to the Carroll & Graf (-UK) 2005 edition - I have marked them "[new]".

(Introduction by Mike Ashley)
"Forbidden Brides of the Faceless Slaves in the Nameless House of the Night of Dread Desire" by Neil Gaiman
"The Blue Magnolia" by Tony Ballantyne
"Colquitt's High-Energy Trousers" by Steven Pirie
"A Drama Of Dragons" by Craig Shaw Gardner
"Pest Control" by Adam Roberts [new]
"Wrong Planet" by Tom Holt [new]
"Return Of The Warrior" by Laird Long [new]
"Christmas Games" by David Langford
"Stephen Skarridge's Christmas" by Frank R. Stockton
"Sing A Song Of Sixpence" by Robert Loy
"The Kaluza-Klein Caper" by Damien Broderick
"Shoes" by Robert Sheckley
"The Day We Played Mars" by Maurice Richardson
"Fowl Play" by Steve Redwood [new]
"The Deaths Of Robin Hood" by Rhys Hughes
"Bad Timing" by Molly Brown
"Sweet, Savage Sorcerer" by Esther Friesner
"The Power And The Gory" by James Bibby [new]
"The Strange Affair Of Mr Corpusty" by Anthony Armstrong
"The Great Wish Syndicate" by John Kendrick Bangs
"Fractal Paisleys" by Paul Di Filippo
"Almost Heaven" by Tom Gerencer
"A Rude Awakening" by Gail-Nina Anderson [new]
"Spoiled Rotten" by Grey Rollins
"The Birth Of A.I." by Cynthia Ward
"Stakes And Adders" by Marilyn Todd [new]
"The Sea Serpent Syndicate" by Everard Jack Appleton
"Yo Ho Hoka!" by Poul Anderson & Gordon R. Dickson
"The Mirrors Of Moggropple" by John Morressy
"I Married A Robot" by Ron Goulart
"Mrs Wilson And The Black Arts of Mrs Beelzebub From Number Six" by Steven Pirie [new]
"Sooner or Later or Never Never" by Gary Jennings