Hanoch Piven is a fantastic funny artist! Take a look!
http://www.pivenworld.com/
Jane Perkins .
https://www.boredpanda.com/pixel-art-from-found-objects-famous-paintings-plastic-classics-jane-perkins/?utm_source=google&utm_medium=organic&utm_campaign=organic
Some contemporary collage artists.
https://www.boredpanda.com/pixel-art-from-found-objects-famous-paintings-plastic-classics-jane-perkins/?utm_source=google&utm_medium=organic&utm_campaign=organic