I needed an easy way to make 24 booster nozzles for my 29mm powered Soyuz TMA-3.
Using wire nuts I found on my bench, I drilled holes in the booster end caps and inserted them until they bottomed out against the flange. On the reverse side I used my soldering iron to melt them into place. They look very convincing and should prove to be durable enough to survive hard landings.

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