There are 4 alternatives to redo your splashback without breaking everything or put another tile:
- Special paint for tiles: modest choice
- Decorative covering with waxed solid impact: somewhat more specialized however available and exceptionally mechanical ‘stylish
- Adhesive plates: extremely simple to apply
- Printing plexiglass: a material extremely impervious to affect
Whatever choice you pick, it is imperative to clean your surface altogether before painting, applying the mortar, stick the glue plates, or fix the plexiglass.