Making part of the pod out of 3mil PVA and bonding it to another part made of 1mil PVA does not sound like unachievable technology to me. In fact, the first Goo

Making part of the pod out of 3mil PVA and bonding it to another part made of 1mil PVA does not sound like unachievable technology to me. In fact, the first Google result for PVA films that I see sells them based on their various dissolution times.