Good idea, I normally use 3 pieces of black thread (one for the tail and one for each wing) and tie them in a knot around the place that particular one is going, for the wings they go between the fuselage and any engines they have to ensure the thread doesn't slip off the wings.
A drawing pin is put in the ceiling for the tail for the first attachment, the thread is tied round the pin at the required height and the process is repeated for the wings to get the bank/dive/climb wanted