sorry for the delay, the only thing I want is to choose a random texture on one face of the block for example the north face of the block and the other faces have the same texture for example a black image.
sorry my mistake, I mean each time you place the block "vending machine" the texture of the front can be chosen at random.
so as not to create a block for each type of machine, for example:
I put the block and the front texture is of a pepsi machine and then I put another and randomly is the texture is a snack machine.
sorry my bad english.