There are six texture options available, just click the glass to get the menu. If you do not want people changing the mirror just un-link the mirror and the cup will no longer change anything.
It is important NOT to change the description field on the mirror as this will break the texture changing.
The mirror is in the main shop now, with the Vindustria Bathroom items (left wing as you come in the store).
Weighing in at only 1 land impact and costing only L$95 this mirror is a bargain!
