
By itself the jacket would be pretty sweet, but the H=Jacket by Harris also has a detachable backpack. I love the idea of not dealing with shoulder straps, but you would probably need a pretty light load to safely keep it zipped in. Either way, you are going to be seriously coordinated.
Product Page (No Info On Pricing and Availability via ecouterre via Likecool)

Combine storage, portability and entertainment and you end up with a cat head and a dead fish. Without claws to hunt with, this species of feline obviously utilizes its speaker eyes to beat its prey into submission with the power of sound. It’s still up in the air as to how he was able to lure a fish while riding someone’s back around a college campus.
Product Page: (£24.99, or about $41.73)

There are no actual First Aid supplies for a zombie outbreak in this Left 4 Dead backpack, but it will do a fine job of accessorizing a costume and holding your gear.
Product Page ($28)
Unless companies release products that compliment depression and jet black everything, it’s clear that they don’t “get” you. However, with money on the line, you can be sure that they are working feverishly to penetrate your niche market, and in the process bring forth such wonders as this spiky backpack, which can also double as the ultimate “goth Bowser” Halloween costume accessory.
Product Page: ($25)

If you look at your conquering your professional life like you look at conquering the Xbox 360, this tie is your ticket to upper management.
Product Page ($45)

Stumbling and bumbling across the internet, I came across a treasure trove of Xbox 360 backpacks. It’s not Tutankhamun’s tomb or the lost city of Atlantis, but it is a find nonetheless. A selection of some of the best designs is available after the break.
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The block shape of a LEGO makes a perfect shape for a backpack. The real bonus are the studs that are each separately zippered for individual storage. I am a bit surprised that pickpockets haven’t marketed something like this themselves.
Product Page (£13.99, not available in US/Canada)