Here is a Hello Kitty cross stitch pattern i drew up.I have started stitching it and it works well. It is easier if you stitch all of the black first (this is symbol c) then when that is finished it is just like colouring in but with thread.
The pattern is is 66 stitches wide by 80 stitches high which works out about 12 cm by 15 cm on 14 count fabric, so a fabric piece of about 17 cm by 20 cm should do.
It uses few colours:
7 light pink
@ dark pink
B darker pink
blank squares are white for head, hands and feet.