Etsy is teeming with collage artists. Two skilled practitioners are scrapatorium and Birdnerd. Artandghosts's work is otherworldly, spooky.
Collage artist lowclouds used a variety of media, including vintage paper and gouache, to create "Well I Must"($40).
Although it's priced in the triple digits, French illustrator Julien Pacaud's "Memories of Tomorrow" ($150) is so striking that I couldn't leave it out. You owe it to yourself to see more of his work.
"Birds and Berries" ($15), by Christina Lyon, is a mixed-media collage and ink drawing.