I presented the paint bucket shelf before, of course you can make the same in small as cardboard roll shelf with the cardboard tubes of gift ribbons and the like ;-)
Links:
Cardboard Roll Shelf (The Decorista Chronicles//DIY CUBBY SHELF ORGANIZER {Design Your Own Series-3})
Here at unikatissima:
Paint Bucket Shelves
Entries with the tag ‘cardboard tube’