Hi. Don't know if this could be the kind you are looking for: http://www.emblibrary.com/EL/Prod...;ProductID=c9789
I bought it but haven't tried to sew it yet.
Good luck
There are some space ships under aliens, also check out the forum for free designs at sewforum.com
Jo
emblibrary has a few but embroidery designs has a lot more
I might be mistaken but I think Bunnycup might have what you are looking for in their retired sets.