You ll probably need to buy these online but there are ceramic stickers designed to cover tiles with a piece of adhesive art.
How to cover holes in wall tiles.
The cover can be made large enough to have an acceptable bonding area and the silicone will stick to the smooth tile well enough to hold the cover in place once it sets.
Install a soap holder or face washer ring over the holes to hide them.
Using a putty knife you are going to apply the resin to the hole.
After that scoop up some joint compound on a putty knife and smooth it over the tape.
When using silicone caulk it is best to use one that is the same color as the tile.
Make sure to let the entire filler dry.
Size will work for most applications but measure your valves to make sure.
Measure the size of your tile and go online to look for a design that will match the size of your tile.
Ceramic tile hole saw from about 10 for individual bits to about 50 for kits.
Follow the manufacturer s instructions to determine the amount of hardener to add as.
Add the joint compound in thin layers letting it dry for 2 4 hours between coats.
And you re correct replacing tiles or grouting up the holes will look exactly what it is.
You want to fill the hole entirely and get the patch level to the shower or tub wall.
Stick a piece of fiberglass wall repair tape over the hole.
Cover golf ball sized or smaller holes with repair tape and joint compound.
The easiest and neatest method is to buy a 1 1 4 in.
It will likely take some tape to hold the cover in place till the silicone sets up.
Attach the cartridge to a caulk gun and press the trigger firmly to dispense some into the holes.
Then let it dry.
It has carbide grit embedded in the rim that allows it to cut into vitreous tile.
Mix together a small amount of polyester resin and hardener.
It s important to use as much ceramic tile filler as the hole will allow.