ThemeForest - Kuma - Animated 404 not found HTML template - RIP | 408 KB
Kuma is a cute, yet powerful and modern 404 not found error page template for nearly every type of website. Turn an unfortunate 'content not found' event into a nice surprise!
DEMO:
http://themeforest.net/item/kuma-animated-404-not-found-html-template/5491415?WT.ac=category_item&WT.seg_1=category_item&WT.z_author=routsounmanman