a tool resembling a hammer but with a large cylindrical head that is usually made of rubber or wood
a long stick with a thick cylindrical head used to hit a ball in polo or croquet
a light drumstick with a rounded head that is used to strike percussion instruments
Fashionable mothers in large-brimmed hats knock brightly colored wooden balls through narrow hoops with their mallets while their husbands shake their heads and gently correct them with an arm here, an embrace there.
Chapter 26 (87% in)
There are no more uses of "mallet" in A Great and Terrible Beauty.