I wanted an oval cavalry base for a mounted model I want to paint up but nobody makes exactly what I require. I've got MDF oval bases but they're not a good match for my slotta bases that I'm using on everything else. So I decided to make my own and cast it using an Oyumaru mould and putty.



There's a bit more waffling about it on my blog (link in my sig). Not exactly a tutorial but it explains what I did and why.