Now this is a cool idea! Don't need to buy those fancy scratchers. This will do just fine.
5 Amazing Things Dogs Can Sense Before It Happens http://theilovedogssite.com/are-dogs-psychic-5-things-dogs-sense-before-they-happen/?src=PIN_RCH_DogsCanSense_2-9-14
Turn your home into a feline wonderland by positioning different sized floating shelves at varying positions across your walls. A cheap alternative to a cat tree that kitty is sure to love.
(diy) shiitake cat tree by happiestcat on Etsy...would LOVE something like this for our cats!