you can cover the plastic tiles easier than painting them. we make metal wall tiles in 5 different finishes that will fit over most 4 1/4" square tiles. all you need is a caulking gun G.E silicon place a dab in each corner then press into place over your old plastic tiles. metal tiles clean up easily with a soft soapy cloth. DO NOT USE IN A SHOWER AREA. COLORS AVAILABLE: POLISHED CHROME ON STEEL BRUSHED ALUMINUM- BRUSHED COPPER ON ALUMINUM WHITE OR ALMOND ON ALUMINUM.