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Cool as it may be, laser-engraved iPads come with certain caveats. The shipping time is a bit longer, and Apple usually has a special sales and refund policy for personalized items.
In case of the iPod, the policy states that "Personalized iPods (e.g., engraved or customized in any way) may not be returned for refund or exchange under any circumstances unless such product is Dead on Arrival."