WordNet sense 1 (a composition that imitates somebody's style in a humorous way):

burlesque, charade, lampoon, mockery, parody, pasquinade, spoof, takeoff, travesty, sendup

WordNet sense 2 (something intended to deceive; deliberate trickery intended to gain an advantage):

fraud, fraudulence, hoax, humbug, dupery

WordNet sense 3 (a ludicrous or grotesque act done for fun and amusement):

antic, caper, joke, prank, trick