The "Coolie" is made with fabric and "Cracked Ice Crystals''. The crystals are small hard rocks, but when soaked in water they swell several times their original size. We created a long narrow tube with small chambers to hold the crystals. We deposited about a half of a teaspoon into each compartment and sealed the tube.
Once it was sealed and everything was trimmed and pretty... we soaked the "Coolie" for about 15 minutes in a bowl of water. Then it was ready for trying out! By the end of the morning we made 5 "Coolies".
They are great for the beach and the boat or just laying on the couch on a hot day!

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