iamhuman has released these great add ons for your laptops. They range in price from $30 to $45. On the website they state:
Each iamhuman cover is tailored to fit your mac's specific model and size. We craft each piece from quality fabrics and authentic wood veneers. Professional grade 3M adhesive adheres the cover to your laptop and allow you to remove it whenever you are ready to change it up without leaving a sticky residue.
The covers are made with wood veneers and fabrics and come in several options and fit for your laptop. Love to get a sample of the walnut for a MacBook Pro 15"and show it off at the college I teach at. It would make "cool". To see the complete line go to this link.