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How to prove the stolen item is your? With DNA Print Kit, your special invisible note that wrote with DNA UV security writing pen on your gadgets shows your ownership of the lost item. (more picture below)

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DNA Print Kit – UV Security Product
DNA Print-Kit is a patented and technically advanced UV product that is saturated with selected sequences of DNA strands embedded in the security ink. By simply placing your thumbprint on the objects that you wish to protect and/or writing your personal code or number on them using the DNA UV Security Writing Pen, you will have peace of mind knowing that if items are ever lost or stolen, and subsequently recovered, they can be scanned by the DNA UV Detector to illuminate your invisible marks and prove ownership.

DNA Print-Kit | news source