Tublr-er Meliad aka Jen made this Octopus Backpack. It looks very simple and also very useable but the idea behind the design is absolutely brilliant. Your kid can become very cool with this cleaver and creative piece. You can follow her on Tumblr.
The artist Jennifer Mones just made an adorable plush octopus backpack. Among others, Mones is an illustrator in addition to her design work — You can see more of her work here, available for purchase.