Surrealism usually gets them goiung at my school, although they are teenagers of course...I loathe it.
Pop Art is bright and eye catching, as is Philip Caulfield. Archimboldo has some fantastic heads made from leaves and flowers, kids LOVE these (and is is an old 17th century painter. Rousseau, does jungly pictures with tigers and stuff in them.
Have to go dd is bashing computer keys, Will be back with more later...Mondrian....