exceldiyer To get water on the celing you could have low ceilings or many shower heads? Using a good thinset and trowel on the ceiling and backbutter the tile will give you better adhesion. Larger tiles or natural stone can be a bigger challenge, but go slow. Depending on how much water your ceiling gets splashed, you may need to water proof or use cement backerboard as most ceilings only you can get away with drywall excluding steam showers.

Matt

Jamie Pennington looks like fire brick