A couple summers ago, we stocked up on brass washers to make friendship necklaces. A year later, hex nuts became short in supply thanks to the hex nut bracelet. Today we're all about compression sleeves, which are conventionally used in plumbing but also
Fill the balloon with water . This image illustrates why you don't completely fill the balloon you should always leave some room in the neck of the balloon, then as the form dries the pressure has somewhere to go and your clay wont split.