The company's main product, a mushroom-growing kit, is a cardboard box that houses a plastic bag filled with coffee grounds and mushroom spawn.

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The biggest: a software developer kit for the AppleTV set top box.

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After the trade show was over, they would ask clients to return the kit using the prepaid FedEx (FDX) box.

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Then every two months for the next 5 months, you receive new handbooks and more bricks (all of which will fit into the box and tray from your first kit).

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"It's a cigar box guitar, but it sounds like the hottest piece of kit on earth... it just takes over, it's amazing, it's like it's alive, " he said.

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You don't need a kit, and you don't need to stick to the pieces that come in the box.

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