The best of these carvings have a joyful exuberance, with carved tulips, hearts, animals, or fruit, rhinestones, gold paint, red velvet- lined drawers with secret compartments and pin-release locks.

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Members would have a PIN code to release a bike from a docking station, returning it after their journey.

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Transactions are made via text message, using PIN numbers to release the money.

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It will require an app-specific PIN and in the first release, all payment card credentials will be encrypted and stored on a chip, called the secure element, that is separate from the Android device memory and is only accessible by authorized programs.

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