steve5
how to make arrow head caps for the stove pipe
Well, a body could take a wooden dowel the same diameter as the conical cap. Then, whittle the end off to make a cone of just the end.
Next, get some 3mm ply cut a ccouple of 4x6cm rectangles out. Cut 3x5cm "windows in each of those.
Pinch a bit of 0.020 styrene (err, 0.5mm) sheet between the ply frames. Clamp that together with some bulldog paper clips (the big black spring style ones).
Stick the pointed dowel pointing up in a vise or some similar way.
Now, warm the styene sheet in the frames over a heat source, a candle or alcohol burner will suffice. The plastic will go dull just before it tries to sag in the frame.
Poke the softened plastic over the pointed dowel (gently) and draw it down to form the cone. Do a couple, you might as well. After it cools, trim out the cones, find the best one, and trim it to size. Holding it round end down of fine sand or ganet paper refine the bottom edge. Then, install on the stack.
If you really want to test your frustration level, take some stretched sprue or teeny wire and make the stand-offs for the chimney cone. Otherwise, just glue the cone over the end of the stack.