A Category Error
Using Flying Spaghetti Monsterism as a parody of the Intelligent Design brand of Creationism is a category error. It might be a plausible parody of Young-Earth Creationism since both Flying Spaghetti Monsterism and Young-Earth Creationism are descriptions of how creation occurred. Intelligent Design, on the other hand, is vague description of why creation occurred.
I can think of two possible theories that might be plausibly claimed to be alternatives to both Darwin's explanation of evolution and Intelligent Design. First, there's the theory in Star Maker by Olaf Stapledon, according to which this universe was intelligently designed to lead up to the Supreme Moment of the Cosmos, when the Cosmical Mind encounters the Star Maker and … finds out that this universe is a mere rough draft of the Ultimate Cosmos, soon to be crumpled up and thrown into Heaven's Wastebasket. Second, there's the New Faith in The Earth Book of Stormgate, according to which this universe is God's game preserve and death and pain are what happens when He goes hunting.