Nikolas Gregory Studio's conceptual Ripley kit encourages users to swallow and excrete their own biologically customised piece of jewellery.
The Ripley kit would use the body's natural digestive processes to tailor a ring. It contains a collection of materials including edible abrasives ? such as almond shell and corn husk ? polishing compounds, natural food colouring and a jewel-encrusted gold ring.

The user would ingest the materials, and as the ring passes through the body it would gain a "distinctive patina" created by stomach acids and whatever was recently eaten.

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After consumption, the owner would excrete the jewellery as "a very personal ring for your loved one".
"While citric acid from fruit and soda tends to pit the base material, lactose and calcium aggregate and deposit on the surface," explained Nikolas聽Gregory.
"Not surprisingly, it has been found that popcorn and almonds produce a specular finish while banana, apple and pasta leave the surfaces muted," he聽added.
"Once the ring has been polished, the fecal matter will begin to harden, the dyes will colour the jewels on the ring's surface."

The user would then have to retrieve the jewellery after expelling the material.
Gregory designed the concept聽for a future when food has been replaced by non-agricultural alternatives, and the human d...