I love my Book Armor which fits the 505 in with the original cover, the pink leather cover from Sony and also the cover from Anne's Addictions on Etsy. Here is the link and it has stopped many a cracked screen from multiple bangs when the kids are around not to mention the junk one finds in ones handbags.
www.ecaddycase.com
Glad to see some ideas and photos up so we can all see what's on offer without spending hours searching threads. Keep them coming!
Natalie