This is far from new, but was brought to my attention at a recent conference. l'Artisan Electronique is a virtual pottery wheel, which is described in more detail over on Creative Applications:
This pottery wheel gives visitors a chance to ‘turn’ their own forms. Every time a visitor presses “Save” on the arcade buttons, the creation is saved to disk and displayed on the wall. At regular intervals, a selection of these designs is printed in clay using a modified REPRAP machine and exhibited in the space.