Don't know if this is the same source but here's a video of the technique and results.Forgot exactly which modeling forum I found this on, but credit goes to the original poster. Why pay for expensive "rust powders" when you can use...real rust?
"I even use real rust on my models. I put some fine steel wool in a larger sized pill bottle and cover it with white vinegar. After about 3 to 4 weeks, after the steel wool is dissolved, I pour it out into a stainless steel photographic tray and wait for the vinegar to evaporate. After it is dry, I use a paint scraper (razor blade type) to scrape out the rust. I comes out as a fine powder which I apply to my models with some Elmer´s glue. After that dries and after weathering the model with a black wash I use the Model Masters flat, clear acrylic for the topcoat. I am quite amazed at how realistic I can make a plastic model look like a metal one. I have read many articles on weathering using paints to simulate the rust look, but nothing looks better than using actual iron oxide as my rusting agent."
Elmer glue tips can be pulled off and re-inserted to make chemical nozzlesHeres a few. Like these Christmas balls that I had gotten for the domes on a star destroyer, that I ended up not liking anyways.
So when I made this ship from the game, Wipeout, I used the top hanging part as engine detail.
Then I found that this red round lego part, with some paper added fit nicely into this little tube. It became the main thruster.
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And speaking of thrusters, these water bottle tops fit perfectly into this pvc pipe and became detail for my Starcraft battlecruiser.
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