Whats wrong with collage Ellen. You can make up a new word if you want, I think the term collage may have been invented to describe the work back at the beginning of the 20th when dadaists & surrealists were experimenting with the technique.Probably refers to work with words as well as image? Maybe it comes from chine colle' which is sticking two different kinds of paper together & printing over one or both. & then there the Jabberwocky that goes callou colle & snickersnack or somesuch muddlewuph. So go ahead & have a whack.