8-Bit Tablet Sleeve at ThinkGeek
Not sure it's quite up with the Etch A Sketch case, but this 8-Bit Tablet Sleeve at ThinkGeek really is an eye-catching piece of retro design.
It is, as we mentioned, designed for the iPad, but 'theoretically' could hold smaller tablets as well. If you want one, the price is $29.99.
Find out more at the ThinkGeek website