I'm a big fan of North of the Border, and he reasonably often uses resin pours for his sculpts. Like when he made
Sharkosaurus Rex, Apex Predator.
If I wanted to do this on a bit of a smaller scale-like, say, submerging bases up to the ankles of models for a watery base effect-what kind of tools, supplies, advice, and anything else would I need? I have literally no experience with resin currently.