cermamic tiles - waters landing 20874

I have A LOT of ceramic tiles 6 x 3 3/4 . they were the baseboard in an 80-sq ft bathroom. whatever adhesive was used to adhere to the sheetrock is stuck on the back. you can see it on the tiles bottom of picture. Not sure if / for what these can be used. hopefully there is some creative person who will take them rather than a landfill.
thanks
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