Car In a row

I sew this 6 cars in a row for my friend's son. So, now days I found that boys already have a  taste. My own son at the age of 5 not in favour of cartoon any more. He likes more mature thing such as  car. Of course he likes ultraman, but I didn't know how to patch ultraman. He also in favour of angry bird, but I'm worried about copyright issues.
So, after having this pillow for a while..the little boy request for a bolster cover.
Price List: Pillow RM15 & Cover RM15
Pillow Size: 38cm (length) x 50cm width