Write a free verse poem that is a stream of related images. These images do not need to be connected into a single story or scene. They should, however, be concrete and vivid and eventually add up to a dominant impression conveying a definite emotion of some kind. A close style analysis of a 20th Century Modernist poem will help you with this writing. T.S. Eliot’s poem, Preludes, is a good model, especially structurally.
The name of someone famous
Your own street
A pair of contrasting images
A recurrent image, symbol or color
Two voices (characters from two Modernist short stories?)