How to make FLAT tiles (no warping) - more than one idea included in the article and comments. sheet of newspaper on top and bottom of tile, in sheetrock sandwich, sounds like a good idea.

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ceramic art- how fun would it be to have a class design one tile per student to form one large installment?

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25- Artesano Gris Nuboso Ridged Mexican Clay Tile 4x4 (Shipping Incuded)

Black bird tile ceramique - the black dusted around raised bits--- I think I could do this with hot glue... :)

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Subtractive Clay Techniques Google Image Result for

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