Martha Stewart lines your cabinet with aluminum sheets. This gives the backdrop a little color, other than white, and allows for items to have a magnet on them and be placed directly on the sheets.
Another magnetic technique is this lovely make-up board that has been circulating Pinterest for a while now. Simply line a frame with an aluminum sheet, cover with a desired pattern of thin paper, and add magnets to the back of your makeup. Tada! Easy make-up organization that is very accessible.