Parody
imitative work created to mock, comment on or trivialise an original work
knobbly knees competition
Birds Aren't Real
Project Steve
LOLCat Bible Translation Project
parody
Foil
parody music
Esperanto Republic
Al Gore's Penguin Army
Flying Saucer Rock'n'Roll
parody film
parody advertisement
Saturday Night Live parodies of Sarah Palin
The Battle Hymn of the Republic, Updated
'pataphysics
parody religion