Packaging for gifts is quite important to me - and I particularly like things that can be reused (as you probably know). I wanted a basket or bag to put some nice smelly stuff in for a friend. I modeled this on one I've made previously for easter eggs. It uses a piece of 12"x12" that I've trimmed to be exactly 30cm square. But you can use any sized square as long as it is divisable by 3.