This is a coin purse made from a milk carton. It's 6cm square with a 5mm gusset. It's novel, practical, and durable. You'll feel like you want to take good care of it. The main feature is that it stays open wide. In addition, I can make them to order. I also use it as a handmade parts container, and it makes picking up parts easy. You can also scoop things out with the large lid. You can write the names of the parts on the gusset, making them easy to find, and it's compact when not in use.