The small details also can be made from scratch. Just a matter of an idea how to make it.
My vacu P-39 Airacobra 1/72 scale model made years ago. The whole landing gear was made from scratch because the one that came with the kit wasn't able to carry the model weight. Both the main legs and the nose one including the struts and other details were made using of the warmed up and stretched pieces of a sprue.
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