Collage technique: use transparent tape to pick up words or patterns from book pages, magazines, napkins
"Mixed Media Wood Collage", by Karen Michel. You could do something similar w/cardboard
Print Transfer Technique A quick and easy way to transfer some print material to your art journaling pages, that I came across mostly by accident and have since used on many an art journaling page!
love this collage of photos
Mixed Media Collages by Stephen Magsig I'd put a was over it to soften. Very nice
Collage for small wall.