The Pennywise theme is probably one of the themes that stands out since you do not come across an evil looking clown everyday. Pennywise is a character from the popular horror novel "It." The novel which is a work of Stephen Kings who is a successful author. Pennywise has also been depicted in the film adaptation by Swedish actor Bill Skarsgard and in a television adaptation back in the 1990s. This theme has 12 HD wallpapers.