How can I use up 19 pot holders?

How big are your potholders?

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Do you perhaps have a picture of them, it would make it easier to suggest things. One idea is to use them under house plants so as not to scratch the surface or if they're still pretty you could make a wall mural to show case them

Hello-Could you post a photo? That might help us address to your crafting situation. Depending upon the pot holder designs and conditions they might be quilted together to make a runner for the dining table.