Nexus 7 case, the best alternative is to buy a sturdy sleeve for your device. Here, I have two great products, the Case Logic Nexus 7 sleeve, which offers the best overall protection, and the Encase Ultrasuade Pouch, in vibrant pink, which also offers screen wipe capabilities.
If you aren't so keen on the black design, however, there is another option. The Encase Ultrasuade Pouch comes in vibrant pink and is the perfect girly case for your Nexus 7. An added bonus of this case is that it the outside of the pouch can act as a screen wipe, to keep your tablet in pristine condition. It is a great Nexus 7 cover.