IN doing some bedtime reading, and going through the Sturgeons Sawmill Instructions, Brett notes something about blackening products which is important. The Jax pewter blackener as we all know is the superior product now for blackening "white" metal details. However, the Jax Brass and Bronze blackener is surprisingly ineffective. The kit instructions note that Blacken-It is preferable for blackening things like bright brass wire while Jax is preferable for metal details. I guess it all depends on the allow. But I've found this to absolutely true- best to keep both the Jax blackener and Blacken-It on your alchemy shelf.
I'm also a fan of Weather-It. it is not a substitute for colouring wood but can help - I'm scratch building a structure which I found to be too lightly coloured after I had partially clad the walls (the stock is cedar not basswood). I used Weather-It to darken and grey the wood brushed on after assembly and looks great now. Of course, this will show any sloppy gluing!