The aerial parts of yarrow, particularly the wild white-flowered variety. To be harvested while the herb is in flower, on a dry day after the morning dew has evaporated. And more . . .
A model aeroplane is used for presentations and testing. Model planes are also used for fun. They are used model-plane clubs, aeroplane company headquarters and studios. (Bedroom, in my house)
The ancient Germanic tribes and the ancient Scandinavians used runes as an alphabet. Prior to that, they used runes for magic purposes, such as casting lots (divination) and spells of protection.