A parody religion or mock religion is a belief system that challenges the spiritual convictions of others, often through humor, satire, or burlesque (literary ridicule). Often constructed to achieve a specific purpose related to another belief system, a parody religion can be a parody of several religions, sects, gurus, cults, or new religious movements at the same time, or even a parody of no particular religion – instead parodying the concept of religious belief itself. Some parody religions emphasise having fun; the new faith may serve as a convenient excuse for pleasant social interaction among the like-minded. One approach of parody religions aims to highlight deficiencies in particular pro-religious arguments – following the logic that if a given argument can also be used to support a clear parody, then the original argument is clearly flawed. This can be done through fictional religions found in many works of fiction - one example of this can be the Bokononism from the novel Cat’s Cradle (1963) by Kurt Vonnegut. Another example of this is the Church of the Flying Spaghetti Monster, which parodies the demand for equal time employed by intelligent design and creationism. Occasionally, a parody religion may offer ordination by mail or on-line at a nominal fee, seeking equal recognition for its clergy/officiants – under freedom of religion provisions, including the 1st and 14th amendments to the United States Constitution – to legally solemnise marriages. Parody religions also have sought the same reasonable accommodation legally afforded to mainstream religions, including religious-specific garb or headgear. A U.S. federal court ruled in 2016 that the Church of the Flying Spaghetti Monster ("Pastafarianism") is not a religion, but Pastafarianism or "The Church of the Latter-Day Dude" (Dudeism) have been accommodated to some extent by a few U.S. states and by some other countries. Several religions that are considered as parody religions have a number of relatively serious followers who embrace the perceived absurdity of these religions as spiritually significant, a decidedly post-modern approach to religion.