The internet is full of smells that mice are supposed to hate. A quick search will bring up anything from vinger, garlic, to essential oils. However before you start crushing garlic around your house or spray enough vinegar to make your house smell like an old hoagie lets consider what science can tell us about what smells mice hate.
Other than chili powder, peppermint, and dogs and cats there is little evidence other smells repel mice. Most of the other scents recommended online are repugnant such as moth balls but they are not proven to be smells mice hate or to keep mice away. Before spending time creating a DIY mouse repellent from an unproven substance spend time researching what has been proven to work. Since peppermint oil is proven to work one of the simplest solutions is to just purchase a premade bottle of natural mouse repellent.