So I was VERY rusty as far as molding goes - I over-did the release in my silicone mold. Still hoping to save the cast, though in three places I have champagne bubbles - so fine! - in the surface. I sanded it down so now I have lots of tiny bubbles that need filling. I'm looking for a less-stinky (than Tamiya) or even home-made filler that would work. It's the first from the mold and I would like to keep it as a mother for the next round - the original broke when I had an issue getting the base out. (I know, I know - see above re: rusty). I was using Smooth On 325. Heard something like mixing white glue and powder, or even wood filler... ideas?