I have to "Morkies" that are rescues, they are in my avatar. If you look at them they do not look anything alike. Bogey is from a shelter and I paid $35 for him plus the cost of a neuter. Doodlebug was from a rescue and I think his fee was $250 from a reputable rescue. He was 12 weeks old when I brought him home. They are both very cute (I'm partial

) and love them very much but they do not look anything at all alike. Bogey has brown eyes and Dbug has black, are over 10 lbs and one has a cotton coat and the other silky. So you can see there is no reasoning they will look a certain way. They both have the very sweetest personalities and are total love bugs too.
After rescuing both of my boys I would have to say there are plenty of mixes that are available if you look.