Thanks! The symbols were carved, and then painted. I displayed my salamander units on them, and even one of my smaller skink/krox units.
Sculpey, a bakeable clay, as well as cork, were the materials. There are numerous posts on this method on the blog in the 'basing techniques' section.
Great to see you haven't forgotten Lizzies in your tutorial video and Tomb Kings fever (not that I mind, I actively follow your posts on the TK forum). And that base looks stunning, I'm really eager to see what kind of paint magic you'll conjure on those Salamanders!
I use just about every brand there is... Reaper, GW, Vallejo, PPress, Coat D'Arms, Secret Weapon, you name it. Sometimes out of necessity, sometimes by choice. There are some that are 'favorites', but often I just have to make do with what is at hand...