The thing that is scratch built which I've lost the most of is euphroes. They are so tricky to make without splitting the wood while you drill hole out that you make 4 of them before you get 2 which look decent at 1:100 scale. Thin walnut sticks like to split, so I've learned to drill the holes first, then whittle or sand the wood away to shape the part around the holes. Euphroes are those two brown things at the top of the crows feet below.