Lovely picture, too cute!!! But looking at your cats, I don't think they're in any need of food....
so that's maybe the reason they're not interested in the food chain called "mice"!!!!
By the way, I find camphor blocks good to keep mice out of my fabric and they don't smell quite as bad as moth balls. We have a mice problem too at certain times of the year, although we just haven't found out where they're coming in. The other day I had one running across my desk and she sat there, under the light, near my computer screen just looking at me....