Here is a current list of Marking Allocations.
If you buy and replace a Marking, remember it will completely 'bump' out the previous Marking in that slot!
This can be frustrating, if you want two Markings to show on your Felis, and they are both on the same slot - but many Bases will have the same Markings you're looking for, and you can overlap one of the Markings onto a Base to get that look!
First Marking:
Celtic
Second Marking:
Baroque
Third Marking:
Cutout
Polka
Fourth Marking:
Panda
Socks
Fifth Marking:
Wings