I have two recent cubs with spontaneous rosette markings (neither parents have them)
https://www.lioden.com/lion.php?id=794165325185
https://www.lioden.com/lion.php?id=794165086875

Also, I'm really excited about my new king on my 2nd account! He's almost done. Just need to get Pulsar Cheetah markings from a Pulsar Markings applicator (I've tried twice and currently have margay which is almost as good, but I really want cheetah for my vision. I'll have to wait a while to have more money to buy more though) Then I just need the heir to grow up, then the second heir (a Ferus so I can apply the lion designs I want to it) then he'll be ready. This is what he'll look like!