Expandable and/or disposable ice pack

A method of manufacturing an ice pack comprising

• dispensing liquid into an opening on a body, wherein said body comprises
• paper, wherein said paper is configured to resist degradation when exposed to water, wherein:
• the body defines an interior chamber and said opening, wherein said opening is in communication with the interior chamber, the opening configured to receive liquid into the interior chamber and to be closed after the liquid is received therein;
• and
• the body comprises a first layer of said paper having a first perimeter,
• a second layer of said paper having a second perimeter,
• one or more side panels,
• each side panel of the one or more side panels coupled to the first and second layers such that the body is expandable from a collapsed state to an expanded state, in which:
• at least a portion the first perimeter and at least a portion of the second perimeter are disposed farther apart in the expanded state than when the body is in the collapsed state;
• each side panel of the one or more side panels extends from the first layer to the second layer;
• and
• a volume of the interior chamber is larger in the expanded state than when the body is in the collapsed state;
• and
• an absorbent material disposed in the interior chamber such that, when said liquid is received into the interior chamber from the opening, the absorbent material absorbs at least some of said liquid;
• and
• closing said opening.