DIY Air Freshener lid for 8oz Ball quilted crystal jelly jars

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There's a product known by several names, such as water marbles, crystal mud, and others like it. These tiny polymer beads are smaller than a BB, and when soaked in water, they expand around 10 times their original size over time. As the water evaporates, they will shrink again, but this process can take weeks or even a month to complete.