Google is your friend
http://www.fabric.com/ProductDetail....FQ6f4Aodv2IAsw
This one isn't too cartoony
http://www.joann.com/licensed-cotton...prd_12030227a/
There is a whole line available
http://www.fatquartershop.com/Star-T...ot-Cottons.asp
Finally google images of star trek quilts or the starship enterprise and you can probably create some sort of applique of the ship yourself. Fusible web is an easy applique form and even a beginner can do it.