Need 1 special back pack

We have a 4 yr old girl who is very apprehensive about going to school in September.Already having alittle bit of trouble sleeping worrying over the new chapter in her life(when I was 4 I didn't even know what to worry about,lol).She loves cats and the mom thought if maybe we could get 1 back pack with cats on it her daughter  would look at going to school as something special and feel less worried.