Zero waste milk cartons - fill your own!

I saw this self serve milk machine on my travels last weekend. Pity it is too far away for me to use - at Blair Drummond. You can buy just a glass to drink, or fill your own container which are avaialble to buy. It also makes mlkshakes! Filled with fresh milk everyday from the local dairy it seems like a great idea - and looked very popular when I was there, as I couldn't get a clear photo!